Chang Sung Corporation manufactures four types of soft magnetic powder cores including the Molybdenum Permalloy

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Chang Sung Corporation manufactures four types of soft magnetic powder cores including the Molybdenum Permalloy (MPP), High Flux, Sendust and Mega Flux , which are mainly used for inductors and transformers requiring low losses and inductance stability under high DC bias conditions. A fully standardized production management system under strict quality control of the raw materials (nickel, iron, molybdenum, aluminum and silicon) enables CSC to guarantee consistent quality and thus build greater confidence in our company’s product line. MPP Ni-Fe-Mo alloy powder cores are made from alloy powders of nickel, iron and molybdenum. MPP cores exhibit a highly sustainable stability in temperature and inductance under high DC magnetization or high DC Bias conditions. They offer the highest permeability among our materials and the lowest core loss compared to any other core material. MPP cores are also considered to be a premium material for direct current output inductors for SMPS including high Q filters, loading coils and EMI/RFI filters. Finished toroid cores are coated with a gray epoxy to provide dielectric protection and added physical strength. HIGH FLUX Ni-Fe alloy powder cores are made from alloy powders of nickel and iron. The 15,000 Gauss saturation level of High Flux cores has a higher energy storage capability and more effective permeability when compared to the performance of gapped ferrite or powdered iron cores of a similar size. The excellent DC bias characteristics and low core losses of High Flux cores offer a reduction in size and the number of winding turns as well as superior magnetic properties. CSC High Flux cores are excellent choices for applications such as PFC reactors, switching regulator inductors, in-line noise filters, pulse transformers and flyback transformers. Finished High Flux cores are coated with a Khaki epoxy and come in a variety of shapes and sizes. SENDUST Fe-Si-Al alloy powder cores are made from alloy powders of iron, silicon and aluminum. Near-zero magnetostriction makes Sendust cores ideal for eliminating audible noise in filter inductors. Core losses of Sendust cores are significantly lower than those of powdered iron cores. Especially Sendust E shapes provide a higher energy storage capability than gapped Ferrite E cores. Gap losses and eddy current losses are minimized with Sendust E cores compared to gapped ferrite E shapes. Sendust cores are a smart choice for PFC circuits. Other major applications include switching regulator inductors, In-line noise filters, pulse transformers and flyback transformers. Finished Sendust cores are coated in a black epoxy. MEGA FLUX Fe-Si alloy powder cores are made from an alloy of iron and silicon. CSC has developed new magnetic alloy powder cores for the first time in the world under the name of Mega Flux . The innovative design of these unique cores includes a smaller size, higher current and higher energy storage capability. Mega Flux cores have higher flux density than any other magnetic material, 16,000Gauss compared to 15,000Gauss for High Flux cores and 10,000 Gauss for Sendust cores. The extremely good DC bias characteristics provide the best solution for high end applications such as buck/boost inductors for high power supply systems, smoothing chokes for inverters and reactors for electric vehicles. Mega Flux cores pressed with no organic binder have significantly lower core losses than powdered iron cores and Fe-Si strip cores. They also present excellent thermal properties with no thermal aging effects. Finished Mega Flux cores are coated with a dark brown epoxy. Outstanding products begin with a standardized production line and a strict quality control process MAGNETIC POWDER CORES PRODUCT DESCRIPTION MAGNETIC POWDER CORES TECHNICAL DATA Comparison of Core materials Perm. ( Bs (G) Core Loss DC Bias Relative Cost Temp. Stability Curie Temp ( MPP 14-200 7,000 Lower Better High Best 450 High Flux 26-160 15,000 Low Best Medium Better 500 Sendust 26-125 10,000 Low Good Low Good 500 Mega Flux 26-90 16,000 Medium Best Low Better 700 Iron 10-100 10,000 High Poor Lowest Poor 770 Fe-si (Gapped) 18,000 High Best Lowest Good 740 Amorphous (Gapped) 15,000 Low Better Medium Good 400 Ferrite (Gapped) 4,500 Lowest Poor Lowest Poor 100~300 Permeability vs DC Bias Core Loss (at 50kHz) Magnetic Powder Cores ::: 06 ::: Chang Sung Corporation Materials Powder Strip

::: Chang Sung Corporation Magnetic Powder Cores ::: 08 MAGNETIC POWDER CORES TECHNICAL DATA 3.94 1.52 1.96 4.32 1.98 2.97 5.21 1.93 3.30 6.99 2.29 3.43 7.24 2.29 3.18 7.32 2.21 5.54 7.62 3.45 5.72 8.51 3.43 3.81 10.29 4.27 3.81 10.29 4.27 4.57 10.80 4.57 4.57 11.90 5.89 4.72 13.46 6.99 5.51 17.40 9.53 7.11 18.03 9.02 7.11 21.1 12.07 7.11 23.62 13.39 8.38 24.30 13.77 9.70 27.70 14.10 11.99 33.83 19.30 11.61 35.20 22.60 9.83 36.70 21.50 11.28 40.70 23.30 15.37 47.60 23.30 18.92 47.60 27.90 16.13 51.70 30.90 14.35 58.00 25.60 16.10 58.00 34.70 14.86 63.1 31.37 26.27 75.2 44.07 36.27 78.9 48.0 13.97 78.9 48.0 17.2 90.0 64.74 17.2 103.1 55.7 17.9 134.2 77.0 26.8 167.2 86.9 27.3 Magnetic Path Length (cm) Cross Section A(cm2) CM after finish 40% winding factor CH CS CK Before Finish After Finish Weight(gm) Dimensions(mm) OD(max) X ID(min) X HT(max) Part Number CM : MPP Core, CH : High Flux Core, CS : Sendust Core, CK : Mega Flux Core Window area : area of inner diameter. In addition to the cores listed above, customized specifications are also available. C 035 C 039 C 046 C 063 C 066 C 067 C 068 C 078 C 096 C 097 C 102 C 112 C 127 C 166 C 172 C 203 C 229 C 234 C 270 C 330 C 343 C 358 C 400 C 467 C 468 C 508 C 571 C 572 C 610 C 740 C 777 C 778 C 888 C 1016 C 1325 C 1650 0.817 0.942 1.060 1.361 1.363 1.363 1.650 1.787 2.18 2.18 2.38 2.69 3.12 4.11 4.14 5.09 5.67 5.88 6.35 8.15 8.95 8.98 9.84 10.74 11.63 12.73 12.50 14.30 14.37 18.38 20.00 20.00 24.01 24.27 32.42 38.65 0.0137 0.0211 0.0285 0.0470 0.0476 0.0920 0.0725 0.0615 0.0752 0.0945 0.1000 0.0906 0.114 0.192 0.232 0.226 0.331 0.388 0.654 0.672 0.454 0.678 1.072 1.990 1.340 1.250 2.29 1.444 3.675 5.040 1.770 2.270 18.30 3.522 6.71 9.46 Window Area (cm2) Package Unit (pcs/box) 0.018 0.0308 0.0290 0.0412 0.0412 0.0384 0.0934 0.0922 0.1429 0.1429 0.164 0.273 0.383 0.713 0.638 1.14 1.41 1.49 1.56 2.93 4.01 3.64 4.27 4.27 6.11 7.50 5.14 9.48 7.73 15.25 17.99 17.99 32.92 24.36 45.56 59.31 Surface Area(cm2) 0.47 0.74 0.90 1.7 1.7 2.4 2.7 2.4 3.1 3.5 3.7 4.3 5.6 9.3 9.9 12.1 15.7 17.9 24.7 31.5 29.3 34.5 48.4 69.2 61.6 64.2 84.8 77.2 125.1 194.2 117.3 130.2 134.5 206.1 366.3 538.7 0.61 0.93 1.13 2.03 2.06 2.76 3.31 3.04 4.14 4.47 4.85 6.05 8.00 13.66 13.91 18.95 24.13 26.78 34.42 49.01 52.34 56.09 73.77 96.50 97.79 108.52 120.40 133.19 173.99 283.09 224.42 236.84 262.03 358.37 648.48 689.82 0.09 0.19 0.26 0.56 0.60 1.12 1.03 0.94 1.41 1.76 2.09 2.11 3.13 6.9 8.2 10.0 15.9 19.6 35.6 47.0 35.3 182 130 132 248 181 444 764 301 377 333 774 1863 3267 0.09 0.18 0.25 0.53 0.57 1.07 0.98 0.90 1.34 1.68 2.00 2.02 2.99 6.6 8.0 10.0 15.1 34.0 44.8 33.7 174 124 126 237 173 423 729 287 359 319 739 1779 3120 40k 40k 40k 30k 20k 20k 16k 16k 1,960 1,960 1,368 850 750 360 240 280 240 120 0.07 0.13 0.20 0.41 0.44 0.83 0.76 0.69 1.04 1.30 1.55 1.57 2.32 5.2 6.1 7.4 11.7 14.5 26.4 34.8 26.2 134 184 133 329 566 223 279 255 572 1376 2413 0.08 0.15 0.23 0.47 0.50 0.96 0.88 0.80 1.21 1.50 1.79 1.81 2.69 6.0 7.1 8.7 13.6 16.8 30.6 40.4 30.3 157 112 114 213 155 381 656 258 323 305 665 1620 2808 3.56 1.78 1.52 3.94 2.24 2.54 4.65 2.36 2.54 6.35 2.79 2.79 6.60 2.67 2.54 6.60 2.67 4.78 6.86 3.96 5.08 7.87 3.96 3.18 9.65 4.78 3.18 9.65 4.78 3.96 10.16 5.08 3.96 11.18 6.35 3.96 12.70 7.62 4.75 16.51 10.16 6.35 17.27 9.65 6.35 20.32 12.70 6.35 22.86 13.97 7.62 23.57 14.40 8.89 26.92 14.73 11.18 33.02 19.94 10.67 34.29 23.37 8.89 35.81 22.35 10.46 39.88 24.13 14.48 46.74 24.13 18.03 46.74 28.70 15.24 50.80 31.75 13.46 57.15 26.39 15.24 57.15 35.56 13.97 62.0 32.6 25.0 74.1 45.3 35.0 77.8 49.23 12.7 77.8 49.23 15.9 88.9 66.0 15.9 101.6 457.2 16.5 132.5 78.6 25.4 165.0 88.9 25.4 Core Dimension Table(milimeters) MAGNETIC POWDER CORES TECHNICAL DATA CM 270 125 E Toroidal Core Designation Core finish E:Epoxy, P:Parylene-C, C:Plastic Case Epoxy coated OD size:27.0mm MPP core Available size 3.5mm~165.0mm(OD) Core material CM:MPP, CH:High Flux, CS:Sendust, CK : Mega Flux Available perm. 26, 50, 60, 75, 90, 125, 147, 160, 173, 200μ Permeability :125μ CSC’s Core Designation (nH/N2) Permeability Part No. C 035 C 039 C 046 C 063 C 066 C 067 C 068 C 078 C 096 C 097 C 102 C 112 C 127 C 166 C 172 C 203 C 229 C 234 C 270 C 330 C 343 C 358 C 400 C 467 C 468 C 508 C 571 C 572 C 610 C 740 C 777 C 778 C 888 C 1016 C 1325 C 1650 26μ 026 60μ 060 135 138 192 206 112 156 184 75μ 075 101 169 107 172 240 257 107 137 195 230 90μ 090 113 121 202 128 109 206 112 288 309 102 128 164 234 276 125μ 125 103 105 157 127 117 168 281 178 152 287 156 400 429 142 178 119 228 325 384 147μ 147 122 105 106 124 185 150 138 198 330 210 179 306 185 160μ 160 132 114 115 135 201 163 101 150 215 360 228 195 333 200 173μ 173 144 104 123 124 146 217 176 109 162 233 200μ 200 165 112 105 105 115 142 109 144 169 251 example) AL value of CM270125 is 157(nH/N2) Nominal Inductance Table (AL Value)

Magnetic Powder Cores ::: 10 ::: Chang Sung Corporation MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA The inductance of a wound core at a given number of turns is calculated using the following formula. L L = inductance(μH) μ = core permeability N = number of turns A = effective cross section area(cm2) = mean magnetic path length(cm) LN = Inductance at N turns(μH) AL = nominal Inductance(nH/N2) N2A 10-2 0.4 μ LN AL 10-3 Ampere’s Law Faraday’s Law Magnetic Design Formulas Inductance of a Wound Core Ampere’s Law and Faraday’s Law show the relations of permeability, flux density and magnetizing force of a wound core. H = magnetizing force(oersteds) N = number of turns l = peak magnetizing current(amperes) = mean magnetic path length(cm) Bmax= maximum flux density(gausses) Erms = voltage across coil(volts) f = frequency(hertz) Permeability - Flux Density - Magnetizing Force Inductor specification a) Formula to calculate L at 0Ampere LN = AL 10-3 The Nominal inductance table on page 7 shows the AL value of CM270125 to be 157. Therefore, L ( 0A) = 157 222 0.001 = 76 (μH) b) Determine DC magnetizing force (H) by using Ampere’s law to achieve the roll off. H = 0.4 Nl / H = 0.4 3.14 The magnetizing force(dc bias) is 43.5 oersteds, yielding 64% of initial permeability. See on page 11. The inductance at 10Ampere will decrease the inductance by 64% compared with 0Ampere. Therefore, L( 10A) = 76 0.64 = 48.6 (μH) Inductance calculation by AL vs Nl Curve is also available on page 24. solution - Core : CM270125 - Number of Windings : 22Turns - Current : DC 10Amperes Inductance Calculation by Permeability vs DC Bias Curves H Nl 0.4 Bmax E rms 108 4.44fAN μ B H For toroidal powder cores, the effective area(A) is the same as the cross sectional area. By definition and Ampere’s Law, the effective magnetic path length is the ratio of ampere-turns(NI) to the average magnetizing force. Using Ampere’s Law and averaging the magnetizing force gives the formula for effective path length. Mean Magnetic Path Length (OD - ID) OD ID ln Q = quality factor = 2 frequency (hertz) L = inductance (henries) Rdc = DC winding resistance (ohms) Rac = resistance due to core loss (ohms) Rd = resistance due to winding dielectric loss (ohms) Q L Rdc Rac Rd Powder cores have low hysteresis loss, minimizing signal distortion, and low residual loss. The total core loss at low flux densities is the sum of three frequency dependent losses of hysteresis loss, residual loss, and eddy current loss. The core loss is calculated from the following Legg’s equation. When a varying magnetic field passes through the core, eddy currents are induced in it. Joule heat loss by these currents is called eddy current loss. Hysteresis loss is due to the irreversible behavior in the hysteresis curve and equal to the enclosed area of the loop. The other core loss is called residual loss. Where Rac = core loss resistance (ohms) a = hysteresis loss coefficient c = residual loss coefficient e = eddy current loss coefficient , L, Bmax, f= same as mentioned before Eddy current loss Core Loss Residual loss Hysteresis loss Total loss factor Rac aBmaxf cf ef 2 L OD = outside diameter of core (cm) ID = inside diameter of core (cm) A = core cross section (effective area) = mean magnetic path length (cm) The Q factor is defined as the ratio of reactance to the effective resistance for an inductor and thus indicates its quality. The Q of wound core can be calculated using the following formula, when neglecting the effects of self-resonance caused by the distributed capacitance resulting from the differential voltage between adjacent turns. Q Factor

Magnetic Powder Cores ::: 12 ::: Chang Sung Corporation MPP Sendust Mega Flux High Flux MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA Permeability vs DC Bias Curves μ 125 147 160 173 200 a 0.01 0.01 0.01 0.01 0.01 0.01 0.01 c 2.030 2.412 2.523 2.471 2.495 2.513 2.524 b 1.42E-07 1.27E-07 4.07E-07 7.58E-07 8.20E-07 1.03E-06 1.18E-06 %perm = a+b Hc μ 125 147 160 a 0.01 0.01 0.01 0.01 0.01 c 2.087 2.326 2.386 2.619 2.475 b 3.41E-08 5.42E-08 2.09E-07 1.16E-07 2.50E-07 %perm = a+b Hc μ 125 a 0.01 0.01 0.01 0.01 0.01 c 1.697 1.782 1.755 1.676 1.626 b 1.23E-06 2.75E-06 4.58E-06 9.54E-06 2.41E-05 %perm = a+b Hc μ a 0.01 0.01 0.01 0.01 0.01 c 1.883 2.177 1.982 1.841 1.828 b 9.96E-08 7.35E-08 3.30E-07 1.11E-06 2.01E-06 %perm = a+b Hc

Magnetic Powder Cores ::: 14 MAGNETIC POWDER CORES TECHNICAL DATA Permeability vs Frequency Curves High Flux MPP Sendust Mega Flux ::: Chang Sung Corporation MAGNETIC POWDER CORES TECHNICAL DATA MPP Core Loss P=0.29 B2.23 f 1.63 MPP 26μ, 60μ PL=0.22 B1.99 f 1.68 (B:kilogauss, f:kHz) MPP 26μ, 60μ MPP 125μ P=0.33 B1.98 f 1.64 MPP 125μ

Magnetic Powder Cores ::: 16 ::: Chang Sung Corporation MPP Core Loss High Flux Core Loss MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA MPP 147μ, 160μ, 173μ High Flux 26μ 200 300 400 500 2000 3000 4000 5000 High Flux 60μ MPP 200μ P=0.41 B2.03 f 1.64 MPP 147μ, 160μ, 173μ P=0.46 B2.05 f 1.65 MPP 200μ P=1.76 B2.27 f 1.30 High Flux 26μ P=1.46 B2.27 f 1.32 High Flux 60μ

Magnetic Powder Cores ::: 18 ::: Chang Sung Corporation MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA High Flux Core Loss Sendust Core Loss High Flux 125μ Sendust 26μ Sendust 60μ, 75μ, 90μ, 125μ High Flux 147μ, 160μ P=0.39 B2.18 f 1.69 High Flux 125μ P=0.38 B2.09 f 1.74 High Flux 147μ, 160μ P=1.37 B2.10 f 1.35 Sendust 26μ P=1.17 B2.26 f 1.40 Sendust 60μ, 75μ, 90μ, 125μ

Magnetic Powder Cores ::: 20 ::: Chang Sung Corporation MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA Mega Flux Core Loss Mega Flux 26μ Mega Flux 50μ, 60μ, 75μ, 90μ High Flux MPP Sendust Mega Flux P=2.39 B2.06 f 1.45 Mega Flux 26μ P=1.83 B2.13 f 1.48 Mega Flux 50μ, 60μ, 75μ, 90μ Temperature Stability

Magnetic Powder Cores ::: 22 ::: Chang Sung Corporation MAGNETIC POWDER CORES TECHNICAL DATA MAGNETIC POWDER CORES TECHNICAL DATA 035 039 046 063 066 067 068 078 096 097 102 112 127 166 172 203 229 234 270 330 343 358 400 467 468 508 571 572 777 inch cm cm2( 10-3) Cir-Mil Area Diameter gm/cm Weight 200 400 600 800 11046 8798 7022 5610 4556 3624 2905 2323 1857 1490 1197 954.8 761.7 620.0 497.3 396.0 316.8 259.2 207.3 169.0 134.5 110.2 90.25 72.25 56.25 44.89 36.00 30.25 24.01 18.49 14.44 11.56 9.00 7.29 6.25 55.9 44.5 35.64 28.36 22.95 18.37 14.73 11.68 9.326 7.539 6.065 4.837 3.857 3.135 2.514 2.002 1.603 1.313 1.0515 0.8548 0.6785 0.5595 0.4559 0.3662 0.2863 0.2268 0.1813 0.1538 0.1207 0.0932 0.0723 0.0584 0.04558 0.03683 0.03165 10-6 cm at 20 32.70 41.37 52.09 65.64 82.80 104.3 131.8 165.8 209.5 263.9 332.3 418.9 531.4 666.0 842.1 1062.0 1345.0 1687.6 2142.7 2664.3 3402.2 4294.6 5314.9 6748.6 8572.8 10849 13608 16801 21266 27775 35400 43405 54429 70308 85072 Cir-Mil 10384 8226 6529 5184 4109 3260 2581 2052 1624 1289 1024 812.3 640.1 510.8 404.0 320.4 252.8 201.6 158.8 127.7 100.0 79.21 64.00 50.41 39.69 31.36 25.00 20.25 16.00 12.25 9.61 7.84 6.25 4.84 4.00 cm2 10-3) AWG Wire No. 53.61 41.68 33.08 26.26 20.82 16.51 13.07 10.39 8.228 6.531 5.188 4.116 3.243 2.588 2.047 1.623 1.280 10.21 0.8046 0.6470 0.5067 0.4013 0.3242 0.2554 0.2011 0.1589 0.1266 0.1026 0.08107 0.06207 0.04869 0.03972 0.03166 0.02452 0.0202 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.00762 0.00685 0.00635 0.1051 0.0938 0.0838 0.0749 0.0675 0.0602 0.0539 0.0482 0.0431 0.0386 0.0346 0.0309 0.0276 0.0249 0.0223 0.0199 0.0178 0.0161 0.0144 0.0130 0.0116 0.0105 0.0095 0.0085 0.0075 0.0067 0.0060 0.0055 0.0049 0.0043 0.0038 0.0034 0.0030 0.0027 0.0025 0.468 0.3750 0.2977 0.2367 0.1879 0.1492 0.1184 0.0943 0.07472 0.05940 0.04726 0.03757 0.02965 0.02372 0.01884 0.01498 0.01185 0.00945 0.00747 0.00602 0.00472 0.00372 0.00305 0.00214 0.00189 0.00150 0.00119 0.000977 0.000773 0.000593 0.000464 0.000379 0.000299 0.000233 0.000195 10.4 8.23 6.53 5.18 4.11 3.26 2.58 2.05 1.62 1.29 1.02 0.812 0.640 0.511 0.404 0.320 0.253 0.202 0.159 0.128 0.100 0.0792 0.0640 0.0504 0.0397 0.0314 0.0250 0.0203 0.0160 0.0123 0.00961 0.00785 0.00625 0.00484 0.00400 20.8 16.4 13.06 10.4 8.22 6.52 5.16 4.10 3.25 2.58 2.05 1.63 1.28 1.02 0.808 0.641 0.506 0.403 0.318 0.255 0.200 0.158 0.128 0.101 0.0794 0.0627 0.0500 0.0405 0.0320 0.0245 0.0192 0.0157 0.0125 0.00968 0.00800 31.2 24.6 19.6 15.5 12.3 9.78 7.74 6.15 4.88 3.87 3.08 2.44 1.92 1.53 1.21 0.962 0.759 0.604 0.477 0.382 0.300 0.237 0.192 0.152 0.119 0.0940 0.0750 0.0608 0.0480 0.0368 0.0288 0.0236 0.0188 0.0145 0.0120 41.6 32.8 26.1 20.8 16.4 13.0 10.3 8.20 6.50 5.16 4.10 3.25 2.56 2.04 1.62 1.28 1.01 0.806 0.636 0.510 0.400 0.316 0.256 0.202 0.159 0.125 0.100 0.0810 0.0640 0.0490 0.0384 0.0314 0.0250 0.0194 0.0160 Bare Area Resistivity Heavy Synthetics Current Capacity Amps (listed by columns of amps/cm2) Turns / Single Layer Cir-Mils cm2 ft 100 (unity)b inch 0.0229 0.0344 0.0375 0.0442 0.0435 0.0575 0.0586 0.0524 0.0588 0.0632 0.0651 0.0720 0.0815 0.1057 0.1204 0.1204 0.1405 0.1473 0.1714 0.1943 0.1923 0.204 0.242 0.284 0.273 0.279 0.296 0.306 0.340 cm 0.698 1.049 1.143 1.348 1.327 1.754 1.786 1.598 1.793 1.928 1.986 2.195 2.49 3.22 3.67 3.67 4.29 4.49 5.23 5.93 5.87 6.22 7.38 8.66 8.34 8.51 9.02 9.33 10.40 ft 0.0195 0.0293 0.0324 0.0379 0.0371 0.0531 0.0512 0.0417 0.0448 0.0498 0.0504 0.0507 0.0574 0.0721 0.0763 0.0763 0.0886 0.0982 0.1233 0.1238 0.1059 0.1238 0.1578 0.204 0.1706 0.1623 0.212 0.1739 0.193 cm 0.594 0.894 0.988 1.156 1.132 1.620 1.561 1.272 1.366 1.519 1.537 1.545 1.751 2.20 2.33 2.33 2.70 3.00 3.76 3.78 3.23 3.78 4.81 6.22 5.20 4.95 6.46 5.30 5.90 3,600 6,080 5,780 8,100 8,100 7,570 18,500 18,200 28,200 28,200 32,400 53,800 75,600 140,600 126,000 225,600 277,700 293,800 308,000 577,600 788,500 719,100 842,700 842,700 1,206,000 1,484,000 1,014,049 1,871,000 3,550,000 0.018 0.0308 0.029 0.0412 0.0412 0.0384 0.0934 0.0922 0.1429 0.1429 0.164 0.273 0.383 0.713 0.638 1.14 1.41 1.49 1.56 2.93 4.01 3.64 4.27 4.27 6.11 7.50 5.14 9.48 17.99 Core Size 0.195 0.108 0.227 0.187 0.262 0.195 0.347 0.212 0.359 0.202 0.361 0.292 0.378 0.394 0.433 0.265 0.526 0.293 0.526 0.323 0.554 0.333 0.618 0.353 0.717 0.451 0.932 0.599 0.980 0.641 1.148 0.684 1.283 0.778 1.319 0.843 1.468 0.944 1.840 1.103 1.974 1.142 2.01 1.165 2.22 1.385 2.51 1.525 2.61 1.568 2.85 1.600 2.98 1.34 3.20 1.748 4.40 2.14 mm 4.95 2.74 5.77 4.75 6.65 4.94 8.81 5.38 9.12 5.13 9.17 7.42 9.60 10.01 11.0 6.73 13.4 7.44 13.4 8.20 14.1 8.46 15.7 9.0 18.2 11.5 23.7 15.2 24.9 16.3 29.2 17.4 32.6 19.8 33.5 21.4 37.3 24.0 46.7 28.0 50.1 29.0 51.1 29.6 56.4 35.2 63.8 38.7 66.3 39.8 72.4 40.6 75.7 34.0 81.3 44.4 112.0 54.3 Window Areaa Wire Length / Turn Wound Dimensionc OD HT(Max) Core Size Wire No. Wire Dia ID(mm) 046 1.93 063 066 2.29 068 078 3.45 096 097 4.27 102 4.57 112 5.89 127 6.99 166 9.53 172 9.02 203 12.07 229 13.39 234 13.77 270 14.10 330 19.30 343 22.60 358 21.50 400 467 23.30 468 27.90 508 30.90 571 25.60 572 34.70 610 31.37 777 48.00 2.67 2.38 2.13 1.90 1.71 1.53 1.37 1.22 1.09 0.98 0.88 0.70 0.56 0.45 0.36 0.29 0.24 0.19 0.15 101 104 115 143 108 135 168 103 129 160 112 140 108 134 168 120 149 186 111 138 174 108 120 152 189 237 101 113 143 106 119 134 150 168 211 Single Layer Winding Capacity a : Window Area (= /4 ID2: Core inside diameter), b : Winding Factor ( k= Usable window area/Total window area), c : 100% Winding Assumed Winding Data Wire Table

::: Chang Sung Corporation Inductor specification Solution a) Calculate NI (Ampere Turns) NI = 22Turns X 10Ampere = 220 b) Read the AL value of CM270125 using the AL vs NI curve on page 43. AL value of CM270125 yields 100.4 when NI is 220. c) Calculate L at 10Ampere by using formula; LN = AL x N2X 10-3(μH) Therefore, 10A) = 100.4 222 0.001 = 48.6(μH) Inductance calculation by Permeability vs DC Bias Curve is also available on Page 11. - Core : CM270125 - Number of Winding : 22Turns - Current : DC 10Amperes Inductance Calculation by AL vs NI Curves; Magnetic Powder Cores ::: 24 TOROIDAL MAGNETIC POWDER CORES MAGNETIC POWDER CORES NOTES Tolerance of AL value OD 035~OD 046 OD 063~OD 112 OD 127~OD 1625 Core Size 15% 12% NA 12% 12% Sendust MPP High Flux Maga Flux

Magnetic Powder Cores ::: 26 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES OD039 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 3.94 2.24 2.54 (inch) 0.155 0.088 0.100 After coating (mm) 4.14 2.04 2.74 (Parylene-C) (inch) 0.163 0.080 0.108 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0248 0.0342 0.0458 0.0638 0.0869 0.116 0.161 0.226 0.313 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.00762 0.00685 0.00635 0.430 0.579 0.807 1.18 1.67 2.25 3.15 4.45 5.76 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM039060 CM039125 CM039147 CM039160 CH039060 CH039125 CS039060 CS039075 CS039090 CS039125 CK039060 CK039075 CK039090 125 147 160 173 200 ID 2.24mm HT 2.54mm OD 3.94mm / 0.155inch AL vs NI Curve (125μ) 0.0211cm2 0.942cm 0.0308cm2 0.019670cm3 0.003245in2 0.370inch 6,080cmil 0.001200in3 OD035 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 3.56 1.78 1.52 (inch) 0.140 0.070 0.060 After coating (mm) 3.76 1.58 1.72 (parylene-C) (inch) 0.148 0.062 0.068 Magnetic Dimensions 0.0137cm2 0.817cm 0.018cm2 0.010746cm3 0.002in2 0.317in 3,600cmil 0.000656in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.0237 0.0314 0.0431 0.0581 0.0768 0.105 0.146 0.200 0.272 0.0140 0.0124 0.0199 0.0096 0.00863 0.00762 0.00685 0.00635 0.363 0.503 0.727 1.02 1.37 1.90 2.67 3.45 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM035060 CM035125 CM035147 CM035160 CH035060 CH035125 CS035060 CS035075 CS035090 CS035125 CK035060 CK035075 CK035090 125 147 160 173 200 ID 1.78mm HT 1.52mm AL vs NI Curve (125μ) OD 3.56mm / 0.140inch TOROIDAL MAGNETIC POWDER CORES Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V)

Magnetic Powder Cores ::: 28 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD063 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 6.35 2.79 2.79 (inch) 0.250 0.110 0.110 After coating (mm) 6.99 2.29 3.43 (parylene-C) (inch) 0.275 0.090 0.135 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0470cm2 1.361cm 0.0412cm2 0.064219cm3 0.00729in2 0.536in 8,100cmil 0.003919in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0132 0.0183 0.0253 0.0346 0.0482 0.0653 0.0918 0.126 0.170 0.0216 0.0191 0.0170 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.238 0.337 0.470 0.650 0.880 1.24 1.82 2.59 3.50 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM063060 CM063125 CM063147 CM063160 CM063173 CM063200 CH063060 CH063125 CH063147 CH063160 CS063060 CS063075 CS063090 CS063125 CK063060 CK063075 CK063090 125 147 160 173 200 ID 2.79mm HT 2.79mm OD 6.35mm / 0.250inch AL vs NI Curve (60μ, 125μ) OD046 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 4.65 2.36 2.54 (inch) 0.183 0.093 0.100 After coating (mm) 4.85 2.16 2.74 (parylene-C) (inch) 0.191 0.085 0.108 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0285cm2 1.060cm 0.029cm2 0.0302cm3 0.00442in2 0.418in 5,780cmil 0.001837in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0205 0.0280 0.0388 0.0524 0.0734 0.101 0.135 0.188 0.266 0.0170 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.00762 0.00685 0.371 0.511 0.691 0.968 1.42 2.02 2.73 3.83 5.42 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM046060 CM046125 CM046147 CM046160 CH046060 CH046125 CS046060 CS046075 CS046090 CS046125 CK046060 CK046075 CK046090 125 147 160 173 200 ID 2.36mm HT 2.54mm AL vs NI Curve (60μ, 125μ) OD 4.65mm / 0.183inch

Magnetic Powder Cores ::: 30 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD067 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 6.6 2.67 4.78 (inch) 0.260 0.105 0.188 After coating (mm) 7.32 2.21 5.54 (Epoxy) (inch) 0.288 0.087 0.218 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0920cm2 1.363cm 0.0384cm2 0.1254cm3 0.01426in2 0.537in 7,570cmil 0.007443in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0223 0.0312 0.0431 0.0605 0.0826 0.117 0.162 0.220 0.309 0.0191 0.0170 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.00762 0.440 0.617 0.857 1.17 1.64 2.42 3.46 4.70 6.62 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM067026 CM067060 CM067125 CM067147 CM067160 CM067173 CM067200 CH067026 CH067060 CH067125 CH067147 CH067160 CS067060 CS067075 CS067090 CS067125 CK067060 CK067075 CK067090 103 122 132 144 165 125 147 160 173 200 ID 2.67mm HT 4.78mm OD 6.6mm / 0.260inch AL vs NI Curve (60μ, 125μ) OD066 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 6.6 2.67 2.54 (inch) 0.260 0.105 0.100 After coating (mm) 7.24 2.29 3.18 (Epoxy) (inch) 0.285 0.090 0.125 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0476cm2 1.363cm 0.0412cm2 0.063971cm3 0.00738in2 0.537in 8,100cmil 0.003904in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0180 0.0249 0.0341 0.0474 0.0642 0.0902 0.124 0.167 0.233 0.0191 0.0170 0.0152 0.0140 0.0124 0.0109 0.0096 0.00863 0.00762 0.330 0.461 0.637 0.862 1.21 1.78 2.53 3.43 4.81 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM066026 CM066060 CM066125 CM066147 CM066160 CM066173 CM066200 CH066026 CH066060 CH066125 CH066147 CH066160 CS066060 CS066075 CS066090 CS066125 CK066060 CK066075 CK066090 125 147 160 173 200 ID 2.67mm HT 2.54mm AL vs NI Curve (60μ, 125μ) OD 6.6mm / 0.260inch

Magnetic Powder Cores ::: 32 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD078 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 7.87 3.96 3.18 (inch) 0.310 0.156 0.125 After coating (mm) 8.51 3.43 3.81 (Epoxy) (inch) 0.335 0.135 0.150 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0615cm2 1.787cm 0.0922cm2 0.1099cm3 0.00953in2 0.704in 18,200cmil 0.0067in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0078 0.0108 0.0148 0.0206 0.0285 0.0397 0.0545 0.0762 0.104 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.0140 0.0124 0.146 0.201 0.272 0.382 0.543 0.760 1.05 1.43 2.01 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM078026 CM078060 CM078125 CM078147 CM078160 CM078173 CM078200 CH078026 CH078060 CH078125 CH078147 CH078160 CS078060 CS078075 CS078090 CS078125 CK078060 CK078075 CK078090 125 147 160 173 200 ID 3.96mm HT 3.18mm OD 7.87mm / 0.310inch AL vs NI Curve (60μ, 125μ) OD068 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 6.86 3.96 5.08 (inch) 0.270 0.156 0.200 After coating (mm) 7.62 3.45 5.72 (Epoxy) (inch) 0.300 0.136 0.225 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0725cm2 1.65cm 0.0934cm2 0.126009cm3 0.01124in2 0.650in 18,500cmil 0.007693in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.00902 0.0126 0.0174 0.0242 0.0338 0.0472 0.0651 0.0915 0.125 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.0140 0.0124 0.177 0.244 0.331 0.466 0.664 0.932 1.29 1.76 2.48 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM068026 CM068060 CM068125 CM068147 CM068160 CM068173 CM068200 CH068026 CH068060 CH068125 CH068147 CH068160 CS068060 CS068075 CS068090 CS068125 CK068060 CK068075 CK068090 112 125 147 160 173 200 ID 3.96mm HT 5.08mm AL vs NI Curve (60μ, 125μ) OD 6.86mm / 0.270inch

Magnetic Powder Cores ::: 34 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD097 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 9.65 4.78 3.96 (inch) 0.380 0.188 0.156 After coating (mm) 10.29 4.27 4.57 (Epoxy) (inch) 0.405 0.168 0.180 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0945cm2 2.18cm 0.1429cm2 0.2060cm3 0.01465in2 0.859in 28,200cmil 0.01258in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.00567 0.00783 0.0109 0.0152 0.0209 0.0291 0.0405 0.0567 0.0782 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.110 0.150 0.212 0.293 0.397 0.558 0.795 1.12 1.55 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM097026 CM097060 CM097125 CM097147 CM097160 CM097173 CM097200 CH097026 CH097060 CH097125 CH097147 CH097160 CS097060 CS097075 CS097090 CS097125 CK097060 CK097075 CK097090 105 125 147 160 173 200 ID 4.78mm HT 3.96mm OD 9.65mm / 0.380inch AL vs NI Curve (60μ, 125μ) OD096 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 9.65 4.78 3.18 (inch) 0.380 0.188 0.125 After coating (mm) 10.29 4.27 3.81 (Epoxy) (inch) 0.405 0.168 0.150 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0752cm2 2.18cm 0.1429cm2 0.1639cm3 0.01166in2 0.859in 28,200cmil 0.0100in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0053 0.0073 0.0101 0.0141 0.0193 0.0268 0.0372 0.0519 0.0714 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0152 0.100 0.136 0.193 0.266 0.360 0.505 0.719 1.01 1.40 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM096026 CM096060 CM096125 CM096147 CM096160 CM096173 CM096200 CH096026 CH096060 CH096125 CH096147 CH096160 CS096060 CS096075 CS096090 CS096125 CK096060 CK096075 CK096090 125 147 160 173 200 ID 4.78mm HT 3.18mm AL vs NI Curve (60μ, 125μ) OD 9.65mm / 0.380inch

Magnetic Powder Cores ::: 36 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD112 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 11.18 6.35 3.96 (inch) 0.440 0.250 0.156 After coating (mm) 11.90 5.89 4.72 (Epoxy) (inch) 0.468 0.232 0.186 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.0906cm2 2.69cm 0.273cm2 0.2437cm3 0.01403in2 1.08in 53,800cmil 0.01515in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.00299 0.00412 0.00572 0.00792 0.0109 0.0152 0.0212 0.0292 0.0406 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0566 0.0792 0.109 0.153 0.209 0.297 0.410 0.556 0.782 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM112026 CM112060 CM112125 CM112147 CM112160 CM112173 CM112200 CH112026 CH112060 CH112125 CH112147 CH112160 CS112026 CS112060 CS112075 CS112090 CS112125 CK112026 CK112060 CK112075 CK112090 125 147 160 173 200 ID 6.35mm HT 3.96mm OD 11.18mm / 0.440inch AL vs NI Curve (60μ, 125μ) OD102 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 10.16 5.08 3.96 (inch) 0.400 0.200 0.156 After coating (mm) 10.80 4.57 4.57 (Epoxy) (inch) 0.425 0.180 0.180 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.1000cm2 2.38cm 0.164cm2 0.2380cm3 0.01550in2 0.906in 32,400cmil 0.0140in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.00442 0.00613 0.00847 0.0118 0.0164 0.0226 0.0315 0.0439 0.0614 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0216 0.0191 0.0170 0.0846 0.119 0.162 0.230 0.317 0.430 0.605 0.862 1.21 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM102026 CM102060 CM102125 CM102147 CM102160 CM102173 CM102200 CH102026 CH102060 CH102125 CH102147 CH102160 CS102060 CS102075 CS102090 CS102125 CK102060 CK102075 CK102090 105 125 147 160 173 200 ID 5.08mm HT 3.96mm AL vs NI Curve (60μ, 125μ) OD 10.16mm / 0.400inch

Magnetic Powder Cores ::: 38 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD166 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 16.51 10.16 6.35 (inch) 0.650 0.400 0.250 After coating (mm) 17.40 9.53 7.11 (Epoxy) (inch) 0.680 00.375 0.280 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.1920cm2 4.11cm 0.713cm2 0.7891cm3 0.0298in2 1,619in 140,600cmil 0.0438in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00165 0.00230 0.00318 0.00443 0.00617 0.00856 0.0119 0.0166 0.0231 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0323 0.0453 0.0626 0.0876 0.123 0.172 0.239 0.336 0.460 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM166026 CM166060 CM166125 CM166147 CM166160 CM166173 CM166200 CH166026 CH166060 CH166125 CH166147 CH166160 CS166026 CS166060 CS166075 CS166090 CS166125 CK166026 CK166060 CK166075 CK166090 104 115 125 147 160 173 200 ID 10.16mm HT 6.35mm OD 16.51mm / 0.650inch AL vs NI Curve (60μ, 125μ) OD127 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 12.70 7.62 4.75 (inch) 0.500 0.300 0.187 After coating (mm) 13.46 6.99 5.51 (Epoxy) (inch) 0.530 0.275 0.217 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.114cm2 3.12cm 0.383cm2 0.35568cm3 0.01767in2 1.229in 75,600cmil 0.002172in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.00271 0.00376 0.00520 0.00722 0.0100 0.0139 0.0193 0.0270 0.0371 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0294 0.0267 0.0241 0.0518 0.0723 0.101 0.140 0.197 0.269 0.381 0.527 0.716 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM127026 CM127060 CM127125 CM127147 CM127160 CM127173 CM127200 CH127026 CH127060 CH127125 CH127147 CH127160 CS127026 CS127060 CS127075 CS127090 CS127125 CK127026 CK127060 CK127075 CK127090 125 147 160 173 200 ID 7.62mm HT 4.75mm AL vs NI Curve (60μ, 125μ) OD 12.70mm / 0.500inch

Magnetic Powder Cores ::: 40 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD203 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 20.32 12.70 6.35 (inch) 0.800 0.500 0.250 After coating (mm) 21.1 12.07 7.11 (Epoxy) (inch) 0.830 0.475 0.280 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.226cm2 5.09cm 1.14cm2 1.1510cm3 0.035in2 2.01in 225,600cmil 0.07035in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00221 0.00307 0.00424 0.00590 0.00822 0.0114 0.0159 0.0222 0.0308 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0430 0.0604 0.0834 0.117 0.164 0.230 0.318 0.448 0.614 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM203026 CM203060 CM203125 CM203147 CM203160 CM203173 CM203200 CH203026 CH203060 CH203125 CH203147 CH203160 CS203026 CS203060 CS203075 CS203090 CS203125 CK203026 CK203060 CK203075 CK203090 109 125 147 160 173 200 ID 12.70mm HT 6.35mm OD 20.32mm / 0.800inch AL vs NI Curve (60μ, 125μ) OD172 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 17.27 9.65 6.35 (inch) 0.680 0.380 0.250 After coating (mm) 18.03 9.02 7.11 (Epoxy) (inch) 0.710 0.355 0.280 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.232cm2 4.14cm 0.683cm2 0.9605cm3 0.0360in2 1.63in 126,000cmil 0.05868in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00161 0.00225 0.00311 0.00434 0.00606 0.00843 0.0118 0.0164 0.0228 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 0.0319 0.0449 0.0621 0.0869 0.122 0.171 0.237 0.334 0.458 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM172026 CM172060 CM172125 CM172147 CM172160 CM172173 CM172200 CH172026 CH172060 CH172125 CH172147 CH172160 CS172026 CS172060 CS172075 CS172090 CS172125 CK172026 CK172060 CK172075 CK172090 105 114 123 142 125 147 160 173 200 ID 9.65mm HT 6.35mm AL vs NI Curve (60μ, 125μ) OD 17.27mm / 0.680inch

Magnetic Powder Cores ::: 42 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD234 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 23.57 14.40 8.89 (inch) 0.928 0.567 0.350 After coating (mm) 24.30 13.77 9.70 (Epoxy) (inch) 0.956 0.542 0.382 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.388cm2 5.88cm 1.49cm2 2.2814cm3 0.061in2 2.32in 293,800cmil 0.1415in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00307 0.00429 0.00595 0.00832 0.0116 0.0162 0.0227 0.0318 0.0443 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 101 112 0.0620 0.0874 0.1210 0.170 0.238 0.336 0.465 0.657 0.901 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM234026 CM234060 CM234125 CM234147 CM234160 CM234173 CM234200 CH234026 CH234060 CH234125 CH234147 CH234160 CS234026 CS234060 CS234075 CS234090 CS234125 CK234026 CK234060 CK234075 CK234090 105 124 135 146 169 125 147 160 173 200 ID 14.40mm HT 8.89mm OD 23.57mm / 0.928inch AL vs NI Curve (60μ, 125μ) OD229 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 22.86 13.97 7.62 (inch) 0.900 0.550 0.300 After coating (mm) 23.62 13.39 8.38 (Epoxy) (inch) 0.930 0.527 0.330 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.331cm2 5.67cm 1.41cm2 1.8771cm3 00.0513in2 2.23in 277,700cmil 0.11455in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00276 0.00384 0.00532 0.00742 0.0104 0.0144 0.0202 0.0281 0.0392 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 109 0.0548 0.0771 0.107 0.150 0.210 0.295 0.409 0.577 0.791 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM229026 CM229060 CM229125 CM229147 CM229160 CM229173 CM229200 CH229026 CH229060 CH229125 CH229147 CH229160 CS229026 CS229060 CS229075 CS229090 CS229125 CK229026 CK229060 CK229075 CK229090 106 115 124 144 125 147 160 173 200 ID 13.97mm HT 7.62mm AL vs NI Curve (60μ, 125μ) OD 22.86mm / 0.900inch

Magnetic Powder Cores ::: 44 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD330 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 33.02 19.94 10.67 (inch) 1.300 0.785 0.420 After coating (mm) 33.83 19.30 11.61 (Epoxy) (inch) 1.332 0.760 0.457 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 00.672cm2 8.15cm 2.93cm2 5.4768cm3 0.1042in2 3.21in 577,600cmil 0.3345in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00517 0.00722 0.0100 0.0140 0.0197 0.0274 0.0384 0.0538 0.0750 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 103 115 128 143 159 0.105 0.148 0.206 0.289 0.406 0.572 0.794 1.12 1.54 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM330026 CM330060 CM330125 CM330147 CM330160 CM330173 CH330026 CH330060 CH330125 CH330147 CH330160 CS330026 CS330060 CS330075 CS330090 CS330125 CK330026 CK330060 CK330075 CK330090 127 150 163 176 203 125 147 160 173 200 ID 19.94mm HT 10.67mm OD 33.02mm / 1.300inches AL vs NI Curve (60μ, 125μ) OD270 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 26.92 14.73 11.18 (inch) 1.060 0.580 0.440 After coating (mm) 27.70 14.10 11.99 (Epoxy) (inch) 1.090 0.555 0.472 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.654cm2 6.35cm 1.56cm2 4.154cm3 0.1014in2 2.50in 308,000cmil 0.2536in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00367 0.00514 0.00715 0.0100 0.0141 0.0197 0.0276 0.0387 0.0541 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 104 115 0.0759 0.107 0.149 0.209 0.294 0.414 0.575 0.812 1.11 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM270026 CM270060 CM270125 CM270147 CM270160 CM270173 CM270200 CH270026 CH270060 CH270125 CH270147 CH270160 CS270026 CS270060 CS270075 CS270090 CS270125 CK270026 CK270060 CK270075 CK270090 113 157 185 201 217 251 125 147 160 173 200 ID 14.73mm HT 11.18mm AL vs NI Curve (60μ, 125μ) OD 26.92mm / 1.060inches

Magnetic Powder Cores ::: 46 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD358 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 35.81 22.35 10.46 (inch) 1.410 0.880 0.412 After coating (mm) 36.70 21.50 11.28 (Epoxy) (inch) 1.445 0.848 0.444 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.678cm2 8.98cm 3.64cm2 6.0884cm3 0.1051in2 3.54in 719,100cmil 0.3721in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00579 0.00809 0.0112 0.0157 0.0220 0.0306 0.0429 0.0600 0.0837 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 103 115 129 143 160 177 0.117 0.166 0.229 0.322 0.452 0.637 0.885 1.25 1.71 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM358026 CM358060 CM358125 CM358147 CM358160 CM358173 CH358026 CH358060 CH358125 CH358147 CH358160 CS358026 CS358060 CS358075 CS358090 CS358125 CK358026 CK358060 CK358075 CK358090 117 138 150 162 187 125 147 160 173 200 ID 22.35mm HT 10.46mm OD 35.81mm / 1.410inches AL vs NI Curve (60μ, 125μ) OD343 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 34.29 23.37 8.89 (inch) 1.350 0.920 0.350 After coating (mm) 35.20 22.60 9.83 (Epoxy) (inch) 1.385 0.888 0.387 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 0.454cm2 8.95cm 4.01cm2 4.0633cm3 0.0704in2 3.53in 788,500cmil 0.2485in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00533 0.00740 0.0102 0.0143 0.0199 0.0277 0.0388 0.0541 0.0754 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 108 121 135 150 168 186 0.105 0.148 0.206 0.288 0.404 0.569 0.789 1.11 1.53 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM343026 CM343060 CM343125 CM343147 CM343160 CM343173 CH343026 CH343060 CH343125 CH343147 CH343160 CS343026 CS343060 CS343075 CS343090 CS343125 CK343026 CK343060 CK343075 CK343090 101 109 126 125 147 160 173 200 ID 23.37mm HT 8.89mm AL vs NI Curve (60μ, 125μ) OD 34.29mm / 1.350inches

::: Chang Sung Corporation Magnetic Powder Cores ::: 48 TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD467 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 46.74 24.13 18.03 (inch) 1.840 0.950 0.710 After coating (mm) 47.60 23.30 18.92 (Epoxy) (inch) 1.875 0.918 0.745 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.990cm2 10.74cm 4.27cm2 21.373cm3 0.308in2 4.23in 842,700cmil 1.303in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0488 0.0688 0.0966 0.0136 0.0189 0.0267 0.0375 0.0526 0.0740 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 100 112 125 140 155 0.104 0.146 0.205 0.290 0.403 0.567 0.798 1.13 1.57 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM467026 CM467060 CM467125 CM467147 CM467160 CH467026 CH467060 CH467125 CS467026 CS467060 CS467075 CS467090 CS467125 CK467026 CK467060 CK467075 CK467090 135 169 202 281 330 360 125 147 160 173 200 ID 24.13mm HT 18.03mm OD 46.74mm / 1.840inches AL vs NI Curve (60μ, 125μ) OD400 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 39.88 24.13 14.48 (inch) 1.570 0.950 0.570 After coating (mm) 40.70 23.30 15.37 (Epoxy) (inch) 1.602 0.918 0.605 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.072cm2 9.84cm 4.27cm2 10.5485cm3 0.1662in2 3.88in 842,700cmil 0.6449in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.00389 0.00545 0.00762 0.0107 0.0148 0.0208 0.0292 0.0408 0.0574 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 0.0366 0.0330 100 112 125 140 155 0.0804 0.112 0.158 0.223 0.309 0.435 0.611 0.862 1.20 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM400026 CM400060 CM400125 CM400147 CM400160 CM400173 CH400026 CH400060 CH400125 CH400147 CH400160 CS400026 CS400060 CS400075 CS400090 CS400125 CK400026 CK400060 CK400075 CK400090 101 121 168 198 215 233 269 125 147 160 173 200 ID 24.13mm HT 14.48mm AL vs NI Curve (60μ, 125μ) OD 39.88mm / 1.570inches

Magnetic Powder Cores ::: 50 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD508 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 50.80 31.75 13.46 (inch) 2.000 1.250 0.530 After coating (mm) 51.70 30.90 14.35 (Epoxy) (inch) 2.035 1.218 0.565 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.251cm2 12.73cm 7.50cm2 15.929cm3 0.194in2 5.02in 1,484,000cmil 0.9739in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.00539 0.00754 0.0105 0.0147 0.0205 0.0287 0.0402 0.0562 0.0788 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 107 120 133 149 167 186 207 0.110 0.154 0.216 0.306 0.424 0.596 0.838 1.18 1.64 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM508026 CM508060 CM508125 CM508147 CM508160 CH508026 CH508060 CH508125 CS508026 CS508060 CS508075 CS508090 CS508125 CK508026 CK508060 CK508075 CK508090 109 152 179 195 125 147 160 173 200 ID 31.75mm HT 13.46mm OD 50.80mm / 2.000inches AL vs NI Curve (60μ, 125μ) OD468 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 46.74 28.70 15.24 (inch) 1.840 1.130 0.600 After coating (mm) 47.60 27.90 16.13 (Epoxy) (inch) 1.875 1.098 0.635 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.340cm2 11.63cm 6.11cm2 15.584cm3 0.208in2 4.58in 1,206,000cmil 0.9526in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.00505 0.00708 0.0099 0.0139 0.0193 0.0270 0.0380 0.0530 0.0745 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 108 120 134 150 168 186 0.104 0.146 0.205 0.290 0.402 0.565 0.795 1.12 1.56 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM468026 CM468060 CM468125 CM468147 CM468160 CH468026 CH468060 CH468125 CS468026 CS468060 CS468075 CS468090 CS468125 CK468026 CK468060 CK468075 CK468090 107 128 178 210 228 125 147 160 173 200 ID 28.70mm HT 15.24mm AL vs NI Curve (60μ, 125μ) OD 46.74mm / 1.840inches

Magnetic Powder Cores ::: 52 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD572 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 57.15 35.56 13.97 (inch) 2.250 1.400 0.550 After coating (mm) 58.00 34.70 14.86 (Epoxy) (inch) 2.285 1.368 0.585 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.444cm2 14.30cm 9.48cm2 20.65cm3 0.244in2 5.63in 1,871,000cmil 1.261in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.00644 0.00920 0.0133 0.0188 0.0263 0.0376 0.0531 0.0746 0.107 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 108 120 135 152 169 189 212 237 263 0.152 0.211 0.300 0.428 0.596 0.845 1.19 1.69 2.35 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM572026 CM572060 CM572125 CM572147 CM572160 CH572026 CH572060 CH572125 CS572026 CS572060 CS572075 CS572090 CS572125 CK572026 CK572060 CK572075 CK572090 112 156 185 200 125 147 160 173 200 ID 35.56mm HT 13.97mm OD 57.15mm / 2.250inches AL vs NI Curve (60μ, 125μ) OD571 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 57.15 26.39 15.24 (inch) 2.250 1.039 0.600 After coating (mm) 58.00 25.60 16.10 (Epoxy) (inch) 2.285 1.007 0.635 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 2.29cm2 12.5cm 5.14cm2 28.6cm3 0.355in2 4.93in 1,014,049cmil 1.75in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.00551 0.00801 0.0115 0.0165 0.0230 0.0330 0.0469 0.0664 0.0948 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 111 124 138 156 174 193 0.133 0.189 0.269 0.381 0.534 0.752 1.07 1.51 2.10 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM571026 CM571060 CM571125 CM571147 CM571160 CH571026 CH571060 CH571125 CS571026 CS571060 CS571075 CS571090 CS571125 CK571026 CK571060 CK571075 CK571090 138 172 206 287 306 333 125 147 160 173 200 ID 26.39mm HT 15.24mm AL vs NI Curve (60μ, 125μ) OD 57.15mm / 2.250inches

Magnetic Powder Cores ::: 54 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD740 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 74.1 45.3 35.0 (inch) 2.917 1.783 1.378 After coating (mm) 75.2 44.07 36.27 (Epoxy) (inch) 2.961 1.735 1.428 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 5.040cm2 18.38cm 15.25cm2 92.64cm3 0.781in2 7.24in 3,009,310cmil 5.653in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM740026 CM740060 CM740125 CH740026 CH740060 CH740125 CS740026 CS740060 CS740075 CS740090 CS740125 CK740026 CK740060 CK740075 CK740090 206 257 309 429 125 147 160 173 200 ID 45.3mm HT 35.0mm OD 74.1mm / 2.917inches AL vs NI Curve (60μ, 125μ) N A N A OD610 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 62.0 32.6 25.0 (inch) 2.441 1.283 0.984 After coating (mm) 63.1 31.37 26.27 (Epoxy) (inch) 2.484 1.235 1.034 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 3.675cm2 14.37cm 7.73cm2 52.81cm3 0.570in2 5.66in 1,525,610cmil 3.223in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM610026 CM610060 CM610125 CH610026 CH610060 CH610125 CS610026 CS610060 CS610075 CS610090 CS610125 CK610026 CK610060 CK610075 CK610090 192 240 288 400 125 147 160 173 200 ID 32.6mm HT 25.0mm AL vs NI Curve (60μ, 125μ) OD 62.0mm / 2.441inches N A N A

Magnetic Powder Cores ::: 56 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD778 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 77.80 49.23 15.9 (inch) 3.063 1.938 0.626 After coating (mm) 78.90 48.0 17.2 (Epoxy) (inch) 3.108 1.888 0.677 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 2.270cm2 20.0cm 17.99cm2 43.531cm3 0.352in2 7.72in 3,550,000cmil 2.656in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM778026 CM778060 CM778125 CH778026 CH778060 CH778125 CS778026 CS778060 CS778075 CS778090 CS778125 CK778026 CK778060 CK778075 CK778090 107 128 178 125 147 160 173 200 ID 49.23mm HT 15.9mm OD 77.8mm / 3.063inches AL vs NI Curve (60μ, 125μ) N A N A OD777 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 77.80 49.23 12.70 (inch) 3.063 1.938 0.50 After coating (mm) 78.90 48.0 13.97 (Epoxy) (inch) 3.108 1.888 0.550 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.770cm2 20.0cm 17.99cm2 34.770cm3 0.274in2 7.72in 3,550,000cmil 2.122in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 106 119 134 0.0113 0.0162 0.0228 0.0325 0.0454 0.0646 0.0912 0.129 0.183 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 150 168 188 211 235 263 295 330 365 0.258 0.364 0.514 0.732 1.02 1.30 1.84 2.61 3.62 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM777026 CM777060 CM777125 CH777026 CH777060 CH777125 CS777026 CS777060 CS777075 CS777090 CS777125 CK777026 CK777060 CK777075 CK777090 102 142 125 147 160 173 200 ID 49.23mm HT 12.70mm AL vs NI Curve (60μ, 125μ) OD 77.8mm / 3.063inches

Magnetic Powder Cores ::: 58 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD1016 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 101.6 57.2 16.5 (inch) 3.980 2.252 0.650 After coating (mm) 103.1 55.7 17.8 (Epoxy) (inch) 4.059 2.193 0.701 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 3.522cm2 24.27cm 24.36cm2 85.495cm3 0.546in2 9.56in 4,807,425cmil 5.217in3 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 1.83cm2 24.10cm 32.92cm2 44,103cm3 0.284in2 9.46in 6,00,140cmil 2.691in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM1016026 CM1016060 CM1016125 CH1016026 CH1016060 CH1016125 CS1016026 CS1016060 CS1016125 CK1016026 CK1016060 112 228 125 147 160 173 200 AL vs NI Curve (60μ, 125μ) N A N A OD888 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 88.90 66.00 15.90 (inch) 3.500 2.598 0.626 After coating (mm) 90.03 64.74 17.20 (Epoxy) (inch) 3.544 2.549 0.677 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM888026 CM888060 CM888125 CH888026 CH888060 CH888125 CS888026 CS888060 CS888075 CS888090 CS888125 CK888026 CK888060 CK888075 CK888090 119 125 147 160 173 200 AL vs NI Curve (60μ, 125μ) N A N A OD 88.9mm / 3.500inches ID 57.2mm HT 16.5mm OD 101.6mm / 3.980inches ID 66.0mm HT 15.9mm

Magnetic Powder Cores ::: 60 ::: Chang Sung Corporation TOROIDAL MAGNETIC POWDER CORES TOROIDAL MAGNETIC POWDER CORES OD1625 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 165.0 88.9 25.4 (inch) 6.496 3.500 1.000 After coating (mm) 167.2 86.9 27.3 (Epoxy) (inch) 6.583 3.421 1.075 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 9.46cm2 38.65cm 59.31cm2 365.63cm3 1.466in2 15.22in 11,704,978cmil 22.31in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM1625026 CM1625060 CM1625125 CH1625026 CH1625060 CH1625125 CS1625026 CS1625060 CS1625125 CK1625026 CK1625060 184 384 125 147 160 173 200 ID 88.9mm HT 25.4mm OD 165.0mm / 6.496inches AL vs NI Curve (60μ, 125μ) N A N A OD1325 Core Dimensions OD(max) ID(min) HT(max) Before coating (mm) 132.5 78.6 25.4 (inch) 5.217 3.094 1.000 After coating (mm) 134.2 77.0 26.8 (Epoxy) (inch) 5.283 3.032 1.055 Magnetic Dimensions Cross Section Path Length Window Area Volume (A) ( ) (Wa) (V) 6.71cm2 32.42cm 46.61cm2 217.58cm3 1.040in2 12.77in 9,199,089cmil 13.28in3 Winding Information Single layer winding with 1 inch leads AWG Wire Single Layer AWG Wire Single Layer No. Dia(cm) Turn Rdc, No. Dia(cm) Turn Rdc, 0.267 0.238 0.213 0.190 0.171 0.153 0.137 0.122 0.109 0.0980 0.0879 0.0785 0.0701 0.0632 0.0566 0.0505 0.0452 0.0409 Available Cores Part No. MPP High Flux Sendust Mega Flux Perm. (μ) AL (nH/N2) CM1325026 CM1325060 CM1325125 CH1325026 CH1325060 CH1325125 CS1325026 CS1325060 CS1325125 CK1325026 CK1325060 156 325 125 147 160 173 200 ID 78.6mm HT 25.4mm AL vs NI Curve (60μ, 125μ) OD 132.5mm / 5.217inches N A N A

Magnetic Powder Cores ::: 62 ::: Chang Sung Corporation Magnetic Powder Cores ::: 62 SPECIAL MAGNETIC POWDER CORES MAGNETIC POWDER CORES NOTES

::: Chang Sung Corporation ELLIPSE CORES SPECIAL MAGNETIC POWDER CORES

  • Shorter wire length than rectangular post
  • Good DC Bias characteristics
  • Larger energy storage capacity
  • Low core loss at high frequency
  • Choke filter for solar cell inverters
  • Boost Inductor for solar cell inverters

Features

Applications

Magnetic Powder Cores ::: 64 Permeability vs DC Bias Curves ELLIPSE CORES ASSEMBLY SPECIAL MAGNETIC POWDER CORES (1) Post Ellipse Cores Post Plate LK3515-20 LK3515-25 LK3520-20 LK3520-25 Part No. 7.5 7.5 7.5 7.5 Dimensions Cross Section Area (cm2) A Length (mm) B Width (mm) RC Radius (mm) D Heigth (mm) LS(Sendust Ellipse Core), LH(High Flux Ellipse Core) and customized designs are also available. 4.77 4.77 6.52 6.52 (2) Plate Ellipse Cores LK5035-13 LK5035-18 LK6035-13 LK6035-18 LK7035-13 LK7035-18 Part No. 7.5 7.5 7.5 7.5 7.5 7.5 Dimensions Cross Section Area (cm2) A Length (mm) B Width (mm) RC Radius (mm) D Heigth (mm) 4.77 6.52 4.77 6.52 4.77 6.52 PLATE Part No. Part No.

1 LEG

(cm) Cross Section Area(cm2) Window Area (cm2) AL value (nH/N2) 12% 026μ 040μ 060μ A Length (mm) B Width (mm) C Heigtht (mm) D Inner Heigtht (mm) LK5035-13 LK5035-18 LK3515-20 LK3515-25 LK3515-20 LK3520-20 LK3520-25 LK3520-20 16.47 18.47 16.04 18.04 20.04 22.04 4.77 4.77 4.77 6.52 6.52 6.52 113 101 158 141 127 146 130 117 204 182 164 218 195 176 306 273 245 E Inner Length (mm) LK 35 15 - 20 C Height : 20mm Length : 35mm Width : 15mm Mega Flux Ellipse Core LK:Mega Flux , LS:Sendust Available perm. 26,40,60μ Available size : 20mm~25mm Permeability : 60μ LK 60 35 - 13 C Height : 13mm Length : 60mm Width : 35mm Ellipse Core LK:Mega Flux Available perm. 26,40,60μ Available size : 13mm~18mm Permeability : 60μ 13.5 18.5 13.5 18.5 13.5 18.5 LK6035-13 LK6035-18 LK7035-13 LK7035-18 LK3515-20 LK3515-25 LK3515-20 LK3520-20 LK3520-25 LK3520-20 LK3515-20 LK3515-25 LK3515-20 LK3520-25 LK3520-20 LK3520-25 18.47 20.47 22.47 18.04 20.04 22.04 20.47 22.47 24.47 20.04 22.04 24.04 4.77 4.77 4.77 6.52 6.52 6.52 4.77 4.77 4.77 6.52 6.52 6.52 101 141 127 115 127 115 106 130 117 107 182 164 149 117 107 164 149 136 195 176 160 273 245 223 176 160 147 245 223 204

::: Chang Sung Corporation BLOCK CORES SPECIAL MAGNETIC POWDER CORES

  • Large energy storage capacity
  • No magnetic flux leakage
  • Good temperature stability
  • Low core loss at high frequency
  • High inductance choke coils
  • Flyback transformers
  • Multiple circuit choke coils
  • Output chokes for SMPS

Height : 20mm Length : 60mm Available size : 50mm~80mm Width : 30mm Mega Flux Block Core BH:High Flux, BS:Sendust Available perm. 26,40,60μ Available HT : 15mm~20mm Permeability :60μ BK5315 BK5320 BK6315 BK6320 BK7315 BK7320 BK8315 BK8320 Part No. 50.5 50.5 60.5 60.5 70.5 70.5 80.5 80.5 Dimensions(mm) A B C 30.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3 BS(Sendust Block Core), BH(High Flux Core) and customized designs are also available. Magnetic Powder Cores ::: 66 SPECIAL MAGNETIC POWDER CORES Cross Section Area(cm2) 4.5 4.5 4.5 4.5 BK5315 BK5320 BK6315 BK6320 BK7315 BK7320 BK8315 BK8320 Unit Part No. Assembled (L x W x H mm) Sectional Area (cm2) Window Area (cm2) Path Length (cm) AL value (nH/N2) 12% 026μ 040μ 060μ 80 x 50 x 30 90 x 50 x 30 90 x 60 x 30 100 x 60 x 30 100 x 70 x 30 110 x 70 x 30 110 x 80 x 30 120 x 80 x 30 18.71 18.28 22.71 22.28 26.71 26.28 30.71 30.28 4.5 4.5 4.5 130 107 121 165 100 135 115 100 181 247 149 203 127 172 110 149 BLOCK CORES ASSEMBLY Permeability vs DC Bias Curves

Magnetic Powder Cores ::: 68 SPECIAL MAGNETIC POWDER CORES CYLINDER CORES SPECIAL MAGNETIC POWDER CORES

  • Large energy storage capacity
  • Low core loss at high frequency
  • Power inductor for large currents
  • Buck/ Boost inductor for inverters

OD : 30mm HT : 30mm Available size 24mm ~ 60mm Mega Flux Cylinder Core CS : Sendust, CH : High Flux RBK 54 20 - 15 C Height : 15mm Length : 54mm Width : 20mm Ellipse Core RBK:Mega Flux Available Perm. 26, 40, 60μ Available size : 13mm~18mm Permeability :60μ Available Perm. 26, 40, 60μ Permeability :60μ Post Cylinder Cores CK2020 CK2424 CK2525 CK2828 CK3030 CK3035 CK6030 Cylinder Part No. RBK5420A RBK6424A RBK6725A RBK7428A RBK8030A RBK8030A Plate Dimensions Cross Section Area (cm2) OD (mm) HD (mm) 3.14 4.52 4.91 6.00 7.07 7.07 28.27 Plate Cylinder Cores RBK5420-15 RBK6424-18 RBK6725-19 RBK7428-21 RBK8030-23 Plate Part No. CK2020 CK2424 CK2525 CK2828 CK3030 Post Dimensions Cross Section Area (cm2) A Length (mm) B Width (mm) 10.0 12.0 12.5 13.7 15.0 RC Radius (mm) D Heigth (mm) 3.14 4.52 4.91 6.00 7.07 RBK5420-15 RBK6424-18 RBK6725-19 RBK7428-21 RBK8030-23 Plate Part No. CK2020 CK2424 CK2525 CK2828 CK3030 Part No. (cm) Cross Section Area (cm2) Window Area (cm2) AL value (nH/N2) 12% 026μ 040μ 060μ 27.5 27.5 27.5 51.4 71.4 91.4 61.6 85.6 109.6 64.2 89.2 114.2 71.4 99.4 127.4 107 137 12.41 16.41 20.41 14.72 19.52 24.32 15.41 20.41 25.41 17.13 22.73 28.33 18.4 24.4 30.4 3.14 3.14 3.14 4.52 4.52 4.52 4.91 4.91 4.91 6.00 6.00 6.00 7.07 7.07 7.07 2.8 5.6 8.4 3.84 7.68 11.52 4.25 8.5 12.75 5.32 10.64 15.96 120 124 136 103 150 113 127 154 116 160 121 176 133 106 193 146 117 191 144 116 232 175 140 240 181 146 264 199 160 290 218 175 A Length (mm) B Width (mm) C Heigtht (mm) D Inner Heigtht (mm) E Inner Length (mm) CYLINDER ASSEMBLY DC Bais Characteristics Post Plate ::: Chang Sung Corporation

::: Chang Sung Corporation Product Identification EE CORES SPECIAL MAGNETIC POWDER CORES

  • Large energy storage capacity
  • No magnetic flux leakage
  • Good temperature stability
  • Low core loss at high frequency
  • High inductance choke coils
  • Flyback transformers
  • Multiple circuit choke coils
  • Output chokes for SMPS

Length : 43mm Available size : 19.0mm~80.0mm Available size : 8.0mm~38.1mm Width : 21mm Sendust E core EK:Mega Flux Available perm. 26, 40, 60, 90μ Permeability :60μ ES 1908A ES 2510A ES 3015A ES 3515A ES 4117A ES 4321A ES 4321B ES 4321C ES 5528A ES 5528B ES 6533A ES 7228A ES 8038A Part No. 19.3 25.1 30.1 34.5 40.9 42.8 42.8 42.8 54.9 54.9 65.1 72.4 80.0 Dimensions(mm) Path Length (cm) Cross Section Area (cm2) AL value (nH/N2) 12% A B C D(min) E(min) F L(nom) M(min) 026μ 040μ 060μ 090μ 8.1 9.6 15.0 14.1 16.5 21.1 21.1 21.1 27.6 27.6 32.5 27.9 38.1 4.8 6.5 7.1 9.3 12.5 10.8 15.4 20.0 20.6 24.6 27.0 19.0 19.8 5.5 6.2 9.7 9.6 10.4 15.0 15.0 15.0 18.5 18.5 22.2 17.8 28.1 13.9 18.8 19.5 25.3 28.3 30.4 30.4 30.4 37.5 37.5 44.2 52.6 59.3 4.8 6.1 7.0 9.3 12.5 11.7 11.7 11.7 16.8 16.8 19.7 19.1 19.8 2.3 3.0 5.1 4.4 6.0 5.9 5.9 5.9 8.4 8.4 10.0 9.5 9.9 4.7 6.3 6.4 7.9 7.9 9.5 9.5 9.5 10.3 10.3 12.1 16.9 19.8 4.01 4.85 6.56 6.94 7.75 9.84 9.84 9.84 12.30 12.30 14.70 13.70 18.50 0.228 0.385 0.601 0.840 1.520 1.280 1.830 2.370 3.500 4.170 5.400 3.680 3.890 104 116 138 162 130 103 119 108 140 157 187 230 173 145 102 163 105 150 194 219 261 300 236 190 100 146 234 151 217 281 EK(Mega Flux EE Core) and customized designs are also available. Magnetic Powder Cores ::: 70 Product Identification EER CORES SPECIAL MAGNETIC POWDER CORES

  • Large energy storage capacity
  • No magnetic flux leakage
  • Good temperature stability
  • Excellent DC bias characteristics
  • Power inductor for large currents
  • Multiple circuit choke coils
  • Output chokes for SMPS

Length : 40mm Available size : 25mm~49mm Available size : 7mm~17mm Width : 13mm High Flux EER Core KER :Mega Flux , SER : Sendust Available perm. 26, 40, 60μ Permeability :60μ HER 2507A HER 2507B HER 3010A HER 3511A HER 3511B HER 4013A HER 4013B HER 4215A HER 4215B HER 4917A HER 4917B Part No. 25.5 25.5 30.6 35.0 35.0 40.0 40.0 42.0 42.0 49.0 49.0 Dimensions(mm) Path Length (cm) Cross Section Area (cm2) AL value (nH/N2) 12% A B C D E F 026μ 040μ 060μ 9.3 11.0 15.8 15.8 20.7 17.4 22.4 22.4 25.4 18.8 24.7 7.5 7.5 9.8 11.3 11.3 13.3 13.3 15.5 15.5 17.2 17.2 7.5 7.5 9.8 11.3 11.3 13.3 13.3 15.5 15.5 17.2 17.2 19.8 19.8 22.0 25.6 25.6 29.0 29.0 29.4 29.4 36.5 36.5 6.2 7.9 9.8 14.7 10.4 15.4 15.4 18.4 12.2 18.1 5.10 5.78 8.66 8.30 10.27 9.13 11.13 10.64 11.84 9.57 11.93 0.450 0.450 0.754 1.078 1.078 1.491 1.491 2.026 2.026 2.353 2.353 115 103 136 109 108 135 111 158 142 185 149 KER(Mega Flux EER Core), SER(Sendust EER Core)and customized designs are also available.

::: Chang Sung Corporation EQ CORES SPECIAL MAGNETIC POWDER CORES

  • Small dimensions for large currents
  • No magnetic flux leakage
  • Excellent DC bias characteristics
  • Good temperature stability
  • Large energy storage capacity
  • Small dimension DC/DC converters
  • Large current choke coils
  • Smoothing choke coils
  • CPU cores for lap-top computers

Length : 40mm Available size : 21mm~ 65mm Width : 28mm Mega Flux EQ core HEQ : High Flux, SEQ : Sendust Available perm. 26, 40, 60μ Permeability :40μ KEQ 2014A KEQ 2014B KEQ 2619A KEQ 2619B KEQ 3222A KEQ 3222B KEQ 3626A KEQ 4128A KEQ 5032A KEQ 6542A Part No. 20.5 20.5 26.5 26.5 32.0 32.0 36.0 41.5 50.0 65.0 Dimensions(mm) Path Length (cm) Cross Section Area (cm2) AL value (nH/N2) 12% A B C D E F 026μ 040μ 060μ 14.0 14.0 19.0 19.0 22.0 22.0 26.0 28.0 32.0 42.0 8.1 10.1 10.1 12.4 10.3 15.2 17.4 19.9 25.0 30.0 8.8 8.8 12.0 12.0 13.5 13.5 14.4 14.9 20.0 26.0 18.0 18.0 22.6 22.6 27.6 27.6 32.0 36.5 44.0 57.2 5.7 7.7 6.8 9.1 6.6 11.5 13.4 15.4 19.5 22.8 4.52 5.32 5.47 6.39 6.03 7.99 9.47 11.52 13.34 16.53 0.608 0.608 1.198 1.198 1.523 1.523 1.808 1.997 3.141 5.309 105 110 127 118 161 101 165 141 190 144 144 131 178 242 HEQ(High Flux EQ Core), SEQ(Sendust EQ core) and customized designs are also available. Magnetic Powder Cores ::: 72 ER CORES SPECIAL MAGNETIC POWDER CORES

  • Small dimensions for large currents
  • No magnetic flux leakage
  • Excellent DC bias characteristics
  • Good temperature stability
  • Large energy storage capacity
  • Small dimension DC/DC converters
  • Large current choke coils
  • Smoothing choke coils
  • CPU cores for lap-top computers

Length : 12mm Available size 8mm ~15mm Height : 4.4mm High Flux ER core RK : Mega Flux RH0721SC RH0725SC RH1028SC RH1034SC RH1237SC RH1244SC RH1539SC RH1549SC Part No. 7.6 7.6 10.1 10.1 12.7 12.7 15.2 15.2 Dimensions(mm) Path Length (cm) Cross Section Area (cm2) AL value (nH/N2) 15% A B C D E F 2.1 2.5 2.8 3.4 3.7 4.4 3.9 4.9 2.88 2.88 3.85 3.85 4.85 4.85 5.76 5.76 6.5 6.5 8.65 8.65 10.8 10.8 12.96 12.96 1.15 1.55 1.75 2.35 2.45 3.15 2.35 3.35 2.82 2.82 3.76 3.76 4.7 4.7 5.64 5.64 1.39 1.55 1.73 1.97 2.19 2.47 2.45 2.85 0.117 0.117 0.206 0.206 0.329 0.329 0.468 0.468 37.1 33.3 52.3 45.9 66.1 58.6 83.9 72.1 RK(Mega Flux RK core) and customized designs are also available.

::: Chang Sung Corporation U CORES SPECIAL MAGNETIC POWDER CORES

  • Large energy storage capacity
  • No magnetic flux leakage
  • Good temperature stability
  • Low core loss at high frequencies
  • High inductance choke coils
  • Flyback transformers
  • Multiple circuit choke coils
  • Output chokes for SMPS

Magnetic Powder Cores ::: 74 WASHER CORES SPECIAL MAGNETIC POWDER CORES

  • High permeability powder cores
  • Low core loss at high frequencies
  • High efficiency washer cores
  • Minimum magnetic flux leakage
  • Excellent DC bias characteristics
  • Good temperature stability
  • Large energy storage capacity
  • Choke coil for mobile phones
  • Inductor for handheld devices
  • Power Inductor for PDA, LCD

Length : 41mm Available size : 35mm~79mm Available size : 36mm~ 65mm Width : 41mm Mega Flux U core UH : High Flux, US : Sendust Available perm. 26, 40, 60μ Permeability :60μ UK3536A UK3536B UK4141A UK4141B UK4141C UK5251A UK5251B UK6361A UK6361B UK7965A UK7965B Part No. 35.0 35.0 41.0 41.0 41.0 52.0 52.0 63.0 63.0 79.0 79.0 Dimensions(mm) Cross Section Area(cm2) AL value (nH/N2) 12% A B C D E F 026μ 040μ 060μ 36.0 36.0 41.0 41.0 41.0 51.0 51.0 60.5 60.5 64.5 64.5 20.0 25.0 20.0 25.0 30.0 25.0 30.0 30.0 35.0 30.0 35.0 25.0 25.0 28.0 28.0 28.0 35.0 35.0 41.5 41.5 42.5 42.5 13.0 13.0 15.0 15.0 15.0 20.0 20.0 25.0 25.0 35.0 35.0 11.0 11.0 13.0 13.0 13.0 16.0 16.0 19.0 19.0 22.0 22.0 2.200 2.750 2.600 3.250 3.900 4.000 4.800 5.700 6.650 6.600 7.700 Path Length (cm) 16.90 16.90 19.30 19.30 19.30 24.30 24.30 29.10 29.10 32.60 32.60 102 115 102 119 123 102 127 152 124 149 148 172 153 178 UH(High Flux U Core), US(Sendust U Core) and customized designs are also available. Product Identification DM 3508P DM 3510P DM 3908P DM 3910P DM 3912P DM 4610P DM 4612P DM 4614P DM 6310P DM 6312P 3.56 1.78 0.8 1.0 0.817 5.6 6.8 3.3, 4.7, 6.8,10 3.94 2.24 0.8 1.0 1.2 0.942 4.4 5.6 6.8 3.3, 4.7, 6.8, 10,15, 22 4.65 2.36 1.0 1.2 1.4 1.060 6.4 8.8 3.3, 4.7, 6.8, 10,15, 22 6.35 3.79 1.0 1.2 1.361 8.8 4.7, 6.8,10,15, 22, 33, 47, 56 Part No. Core Dimensions(mm) Before Finish OD ID HT AL value (nH/N 12% Path Length (cm) Typical Inductance L 0A, 20T( H) Recommended Inductance L( H) at 0A Washer Core DM : Washer MPP Core DM 46 12 P Parylene - C coated OD size : 4.6mm Available size : 3.5mm~ 6.3mm Available HT 0.8mm~ 1.2mm Height : 1.2mm

Magnetic Powder Cores ::: 76 MAGNETIC POWDER CORES NOTES ::: Changsung Corporation Product Identification CS 16 25 026 E Perm. : 26μ OD size : 165mm Available size : 101.6mm~ 165.0mm Available HT 13.6mm~ 40.6mm Height : 25mm Sendust Core CM : MPP, CH : High Flux, CK : Mega Flux E : Epoxy, C : Plastic case, U : uncoated Available perm. 26, 50, 60,125μ Epoxy coated CSC’ big toroidal cores produced by a 3000 ton press are ideal for high current applications, especially in UPS, renewable energy(solar/wind), high power industrial power systems. The maximum diameter is 165mm(6.5”)OD and the electrical characteristics are the same as small toroidal cores. CSC cores are the world’s biggest and strongest on the market today. CS1013 CS1016 CS1027 CS1033 CS1320 CS1325 CS1333 CS1340 CS1650 Part No. Before Finish Dimensions(mm) After Finish Dimensions(mm) Weight (g) Path Length (cm) Cross Section Area (cm2) AL value (nH/N2) OD(mm) Max ID(mm) Min HT(mm) Max OD(mm) Max ID(mm) Max HT(mm) Max 026μ 060μ 125μ 101.6 101.6 101.6 101.6 132.5 132.5 132.5 132.5 165.0 57.2 57.2 57.2 57.2 78.6 78.6 78.6 78.6 88.9 13.6 16.5 27.2 33.0 20.3 25.4 33.0 40.6 25.4 103.1 103.1 103.1 103.1 134.2 134.2 134.2 134.2 167.2 55.7 55.7 55.7 55.7 86.9 14.9 17.8 28.5 34.3 21.7 26.8 34.4 27.3 548.6 665.6 1097.3 1331.3 1280.1 1601.7 2080.9 2560.2 2808.0 24.27 24.27 24.27 24.27 32.42 32.42 32.42 32.42 38.65 2.972 3.522 5.944 7.044 5.347 6.710 8.717 10.694 9.460 108 112 184 224 124 156 202 248 184 192 228 384 456 259 325 422 518 384 CM(MPP core), CH(High Flux core), CK(Mega Flux core) and customer specifications are also available. BIG TOROIDAL CORES SPECIAL MAGNETIC POWDER CORE

  • Excellent DC bias characteristics
  • Near zero magneto-striction coefficient constant
  • Good temperature stability
  • Power factor correction(PFC) circuits
  • Power inductors for large currents
  • AC Reactors for inverters