SFXXF_Q WALSIN | Alldatasheet
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Page 1 of 10 ASC_SFxxF & W_Q Feb- 2019 SF25F/W_Q, SF20F/W_Q, SF10F/W_Q, SF12F/W_Q, SF08F/W_Q, SF06F/W_Q, SF04F/W_Q. TC 15,TC10. Anti-Sulfuration . High Power&Precision Thin Film Chip Resistors Size 2512, 2010, 1210, 1206, 0805, 0603, 0402 AEC - Q200 Compliant. *Contents in this sheet are subject to change without prior notice. FEATURE 1. SMD metal film resistor
Page 2 of 10 ASC_SFxxF & W_Q Feb- 2019 2. High reliability and stability of 0.5% and below per customer request 3. High performance of TCR: 15 /10 ppm/K and below per customer request 4. Low current noise 5. RoHS compliant and lead free 6. AEC-Q200 compliant 7. Sulfuration resistant against ASTM B-809-95* APPLICATION
- Automotive
- Medical equipment
- Measuring instrument
- Communication device
- Computer
- Printer
DESCRIPTION
The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are added at each end and connected by a resistive layer that is applied to the top surface of the substrate. The composition of the resistive layer is adjusted to give the approximate resistance required and the value is trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer. The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For environmental soldering issue, the outer layer of these end terminations is a Lead-free solder . Fig 1. Construction of Chip-R SFxxF&W_Q
Page 3 of 10 ASC_SFxxF & W_Q Feb- 2019 QUICK REFERENCE DATA Item General Specification Series No. SF25 F&W_Q SF20 F&W _Q SF10 F&W_Q SF12 F&W_Q SF08 F&W _Q SF06 F&W _Q SF04 F&W _Q Size Code 2512 (6432) 2010 (5025) 1210 (3225) 1206 (3216) 0805 (2012) 0603 (1608) 0402 (1005) Resistance Tolerance Resistance Range 10 Ω ~ 1.5MΩ 10 Ω ~ 900KΩ 10 Ω ~ 400KΩ 10 Ω ~ 300KΩ 10 Ω ~ 200KΩ 10 Ω ~ 100KΩ 10 Ω ~ 20KΩ TCR ±15 / 10 ppm/ °C Max. Dissipation at Tamb =70 °C 1W 3/4W 2/5W 1/4W 1/8W 1/10W 1/10W Max. Operation Voltage 200V 200V 200V 200V 150V 75V 50V Max. Overload Voltage 400V 400V 400V 400V 300V 150V 100V Operating Temperature - 55~ +155’C Note : 1. This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication 60115-8” 2. Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by Value Resistance Power Rated RCWV ×= or Max. RCWV listed above, whichever is lower. 3. Tolerance ±0.01% is upon requested DIMENSIONS:(unit:mm) Type SF25_Q SF20_Q SF10_Q SF12_Q SF08_Q SF06_Q SF04_Q Protective coat Resistive layer End termination Ceramic Substrate t B A T W L 1001
Page 4 of 10 ASC_SFxxF & W_Q Feb- 2019 MARKING 3-digits marking for 0603 size SFxxF/W has same marking rule as WRxx ±1%. Nominal resistance Description 1.E-24 series As 0603 WR06X ±5%. 2.E-96 series The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of resistance value : Y=10 EX : 17.8 Ω=25X ，178 Ω=25A ，1K78 =25B 17K8=25C ， 178K=25D ， 1M78=25E 3. Remark There is no marking for the items are not under E-24 and E-96 series CODE R_value CODE R_value CODE R_Value CODE R_value CODE R_value CODE R_value CODE R_value CODE R_value 01 100 13 133 25 178 37 237 49 316 61 422 73 562 85 750 02 102 14 137 26 182 38 243 50 324 62 432 74 576 86 768 03 105 15 140 27 187 39 249 51 332 63 442 75 590 87 787 04 107 16 143 28 191 40 255 52 340 64 453 76 604 88 806 05 110 17 147 29 196 41 261 53 348 65 464 77 619 89 825 06 113 18 150 30 200 42 267 54 357 66 475 78 634 90 845 07 115 19 154 31 205 43 274 55 365 67 487 79 649 91 866 08 118 20 158 32 210 44 280 56 374 68 499 80 665 92 887 09 121 21 162 33 215 45 287 57 383 69 511 81 681 93 909 10 124 22 165 34 221 46 294 58 392 70 523 82 698 94 931 11 127 23 169 35 226 47 301 59 402 71 536 83 715 95 953 12 130 24 174 36 232 48 309 60 412 72 549 84 732 96 976 4-digits marking for 2512, 2010, 1210, 1206, 0805 size For E24+E96, each resistor is marked with a four digits code on the protective coating to designate the nominal resistance value. For values below 97 Ω 6 the R is used as a digit. For values of 100 Ω or greater, the first 3 digits are significant, the fourth digit indicates the number of multiple to follow. Example RESISTANCE 100 Ω 6800 Ω 47000 Ω 4-digits marking 1000 6801 4702 No marking code for 0402 size FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E192 & E24 series for resistors with a tolerance of publication 60063”.
Page 5 of 10 ASC_SFxxF & W_Q Feb- 2019 Derating The power that the resistor can dissipate depends on the operating temperature; see Fig.2 MOUNTING Due to their rectangular shapes and small tolerances, Surface Mountable Resistors are suitable for handling by automatic placement systems. Chip placement can be on ceramic substrates and printed-circuit boards (PCBs). Electrical connection to the circuit is by individual soldering condition. The end terminations guarantee a reliable contact.
components on the reverse (mixed PCBs). provide reliable joints without any damage are given in Fig 3. and Table 1. Table 1. Infrared soldering condition for Chip Resistors
Page 7 of 10 ASC_SFxxF & W_Q Feb- 2019 CATALOGUE NUMBERS The resistors have a catalogue number starting with . SF06 F/W xxxx B T L Q Size code SF25: 2512 SF20: 2010 SF10: 1210 SF12: 1206 SF08: 0805 SF06: 0603 SF04: 0402 Type code F: TCR = 15 ppm W: TCR = 10 ppm Resistance code R is first code followed by 3 significant digits. 100 Ω =1000 37.4K Ω =3742 Tolerance A : ±0.05% B : ±0.10% C : ±0.25% D : ±0.50% F : ±1.00% Packaging code T : 7” Reel taping Termination code L : lead free Special code Q : AEC-Q200 compliant 1. Reeled tape packaging: 8mm width paper taping. 5,000pcs/reel for SF10_Q, SF12_Q, SF08_Q, SF06_Q, 10,000pcs/reel for SF04_Q; 2. Reeled tape packaging: 12mm width paper taping 4,000pcs/reel for SF25_Q, SF20_Q.
Page 8 of 10 ASC_SFxxF & W_Q Feb- 2019 TEST AND REQUIREMENTS TEST PROCEDURE REQUIREMENT Resistor
Electrical Characteristics
IEC 60115-1 4.8 - DC resistance values measurement - Temperature Coefficient of Resistance (T.C.R) Natural resistance change per change in degree centigrade. ( ) 12 1 12 10 ×− ttR RR (ppm/ C) t 1 : 20° C+5° C-1° C R 1 : Resistance at reference temperature (20° C+5° C/-1° C) R 2 : Resistance at test temperature (-55° C or +125° C) Within the specified tolerance Short time overload (S.T.O.L) IEC60115-1 4.13 Permanent resistance change after a 5second application of a voltage 2.5 times RCWV or the maximum overload voltage specified in the above list, whichever is less. Ω ) Resistance to soldering heat(R.S.H) MIL-STD-202 Method 210 Un-mounted chips completely immersed for 10±1second in a SAC solder bath at 260 ℃±5ºC no visible damage Ω ) Solderability IEC 60068-2-58 Un-mounted chips completely immersed for 2±0.5 second in a SAC solder bath at 235 ℃±5 ℃ good tinning (>95% covered) no visible damage Temperature cycling MIL-STD-202 Method 107 Test –55 to 125 ℃/ dwell time 30min/ Max transfer time 20sec 1000 cycles no visible damage Ω ) Biased Humidity MIL-STD-202 Method 103 Test 1000 hours at 85 ℃/85%RH. 10% of operation power. Measurement at 24±4 hours after test conclusion. Ω ) Operational Life MIL-STD-202 -108 1000 hours at 125±2° C, loaded with rated power continuously R/R max. (0. 5%+0.05 Ω ) High Temperature Exposure MIL-STD-202 -108 1000 hours at 155 ℃, un-powered R/R max. (0. 3%+0.05 Ω ) Mechanical Shock MIL-STD-202 Method 213 1/2 Sine Pulse / 100g Peak / Velocity 15.4ft/sec R/R max. (0.25% +0.05 Ω ) Vibration MIL-STD-202 Method 204 5 g's for 20 min , 12 cycles each of 3 orientations R/R max. (0.1% +0.05 Ω ) Terminal strength AEC-Q200-006 1 kg for 60 s No broken Board flex AEC-Q200-005 Bending 2mm for 60 sec R/R max. (0.1% +0.05 Ω ) Flower of Sulfur ASTM-B-809-95* * Modified Sulfur 1000 hours, 105° C, unpowered Ω )
Page 9 of 10 ASC_SFxxF & W_Q Feb- 2019 PACKAGING Paper Tape specifications (unit :mm) Series No. Tape A B W F E Series No. P1 P0 Φ D T 0 . 050 . 1+ Φ Max 1.2 0 . 050 . 1+ Φ Max 1.2 0 . 050 . 1+ Φ Max. 1.0 0 . 050 . 1+ Φ Max. 1.0 0 . 050 . 1+ Φ Max. 1.0 0 . 050 . 1+ Φ 0.65 ±0.05 0 . 050 . 1+ Φ 0.40 ±0.05
Page 10 of 10 ASC_SFxxF & W_Q Feb- 2019 Reel dimensions ABC D SF25 , SF20 SF12 , SF10 , SF08 , SF06, SF04 Taping quantity - Chip resistors 4,000 pcs per reel ( SF25_Q, SF20_Q ) - Chip resistors 5,000 pcs per reel ( SF10_Q, SF12_Q, SF08_Q, SF06_Q ) - Chip resistors 10,000 pcs per reel ( SF04_Q ) Symbol A B C D Symbol A B C D