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t -FBEMFTT TVSGBDF mount chip in 5 x 8mm Size t 7PMUBHFSBUJOHT VM(AC)RMS 14V to 275V t 4VQQMJFEJOUBQFBOE reel or bulk pack t /PEFSBUJOHVQUP 125ºC ambient Agency Approvals Absolute Maximum Ratings t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFT TFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU Continuous CH Series Units Steady State Applied Voltage: AC Voltage Range (VM(AC)RMS) 14 to 275 V DC Voltage Range (VM(DC)) 18 to 369 V Transient: Peak Pulse Current (ITM) For 8/20μs Current (See Figure 2) 100 to 250 A Single Pulse Energy Range For 10/1000μs Current Wave (WTM) 1 .0 to 8.0 J Operating Ambient Temperature Range (TA) -55 to +125 ºC Storage Temperature Range (TSTG) -55 to +150 ºC Temperature Coefficient (DV) of Clamping Voltage (VC) at Specified Test Current <0.01 %/ºC CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. AGENCY AGENCY FILE NUMBER UL E3201 16 Recognized under the components program of Underwriters Laboratories.

©2010 Littelfuse, Inc. Revision: August 30, 2010 CH Varistor Series Surface Mount Varistors > CH Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/CH.html for current information. Part Number Maximum Ratings (125ºC) Specifications (25ºC) Continuous Transient Varistor Voltage at 1 mA DC Test Current Max Clamping Volt VC at Test Current (8/20μs) Typical CapacitanceVRMS VDC Energy (10/1000μ s) Peak Current (8/20μs) VM(AC) VM(DC) WTM ITM MIN V N(DC) MAX V C IP f=1MHz (V) (V) (J) (A) (V) (V) (V) (V) (A) (pF) V22CH8 14 18 (Note 3) 1 .0 (Note2) 100 18.7 22.0 26.0 47 5 1600 V27CH8 17 22 1 .0 100 23.0 27 .0 31 .1 57 5 1300 V33CH8 20 26 1 .0 100 29.5 33.0 36.5 68 5 750 V39CH8 25 31 1 .0 100 35.0 39.0 43.0 79 5 700 V47CH8 30 38 1 .2 100 42.0 47 .0 52.0 92 5 650 V56CH8 35 45 1 .4 100 50.0 56.0 62.0 107 5 600 V68CH8 40 56 1 .5 100 61 .0 68.0 75.0 127 10 500 V120CH8 75 102 2.0 250 108.0 120.0 132.0 200 10 300 V150CH8 95 127 3.0 250 135.0 150.0 165.0 250 10 250 V180CH8 115 153 4.0 250 162.0 180.0 198.0 295 10 120 V200CH8 130 175 4.0 250 184.0 200.0 228.0 340 10 110 V220CH8 140 180 5.0 250 198.0 220.0 242.0 360 10 105 V240CH8 150 200 5.0 250 212.0 240.0 268.0 395 10 100 V360CH8 230 300 6.0 250 324.0 360.0 396.0 595 10 70 V390CH8 250 330 7 .0 250 354.0 390.0 429.0 650 10 60 V430CH8 275 369 8.0 250 389.0 430.0 473.0 710 10 50 Device Ratings and Specifications NOTES: 1 . Power dissipation of transients not to exceed 0.25W. 2. Energy rating for impulse duration of 30ms minimum to one half of peak current value. 3. Also rated to withstand 24V for 5 minutes. 4. All Littelfuse CH Series Varistors are recognized under UL file #E320116 as a recognized component. 5. The Typical Capacitance is for reference only Current, Energy and Power Derating Curve Continuous power dissipation capability is not an applicable design requirement f or a suppressor, unless transients occur in rapid succession. Under this condition, the average power dissipation required is simply the energy (watt-seconds) per pulse times the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings and Specifications Table for the specific device. Furthermore, the operating values need to be derated at high tempera tures as shown in this diagram. Because varistors can only dissipate a relatively small amount of average power they are, therefore, not suitable for repetitive applications that involve substantial amounts of average power dissipation. 100 -55 50 60 70 80 90 100 110 120 130 140 150 AMBIENT TEMPERATURE (oC) PERCENT OF RATED VALUE Figure 1

©2010 Littelfuse, Inc. Revision: August 30, 2010 CH Varistor Series Surface Mount Varistors > CH Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/CH.html for current information. CH Series 100 O1 T TIME PERCENT OF PEAK VALUE Peak Pulse Current T est Waveform Clamping Voltage for V120CH8 – V430CH8Clamping Voltage for V22CH8 – V68CH8 500 400 300 200 1009080 MAXIMUM PEAK VOL TS (V) PEAK AMPERES (A) 10-3 10-2 10-1 100 101 102 103 V56CH8 V47CH8 V39CH8 V33CH8 V27CH8 V22CH8 MAXIMUM CLAMPING VOL TAGE MODEL SIZE 5 x 8mm

22 TO 56VN(DC) RATING

TA = -55oC TO 125oC V68CH8 4,000 3,000 2,000 1,000 900 800 700 600 500 400 300 200 100 10-3 10-2 10-1 100 101 102 103 104 V180CH8 V150CH8 V120CH8 V430CH8 V390CH8 V360CH8 V240CH8 V220CH8 V200CH8 PEAK AMPERES (A) MAXIMUM PEAK VOL TS (V) MAXIMUM CLAMPING VOL TAGE MODEL SIZE 5 x 8mm

100 TO 430VN(DC) RATING

TA = -55oC TO 125oC NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of VN(DC), may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection. Surge Current Rating Curves for V22CH8 - V56CH8 500 200 0.2 0.5 100 20 100 1,000 10,000 IMPULSE DURA TION SURGE CURRENT (A) 102 103 104 105 106 INDEFINITE MODEL SIZE 5 x 8mm V22CH8 - V56CH8 (μs) 20 100 1,000 10,000 IMPULSE DURA TION 2,000 1,000 500 200 100 102 103 104 105 INDEFINITE MODEL SIZE 5 x 8mm V120CH8 - V430CH8 106 SURGE CURRENT (A) (μs) Pulse Rating Curves 01 = Virtual Origin of Wave T = Time from 10% to 90% of Peak T1 = Rise Time = 1 .25 x T T2 = Decay Time Example: For an 8/20 μs Current Waveform: 8μs = T 1 = Rise Time 20μs = T2 = Decay Time Surge Current Rating Curves for V120CH8 - V430CH8 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

©2010 Littelfuse, Inc. Revision: August 30, 2010 CH Varistor Series Surface Mount Varistors > CH Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/CH.html for current information. Lead (Pb) Soldering Recommendations The principal techniques used for the soldering of components in surface mount tec hnology are IR Re-flow and Wave soldering. Typical profiles are shown on the right. CH series devices have silver-platinum terminals (Ag/Pt), and the recommended solder is 62/36/2 (Sn/Pb/Ag), 60/40 (Sn/Pb) or 63/37 (Sn/Pb). Littelfuse also recommends an RMA solder flux. Wave soldering is the most strenuous of the processes. To avoid the possibility of generating stresses due to thermal shock, a preheat stage in the soldering process is recommended, and the peak temperature of the solder process should be rigidly controlled. When using a reflow process, care should be taken to ensure that the CH chip is not subjected to a thermal gradient steeper than 4 degrees per second; the ideal gradient being 2 degrees per second. During the soldering process, preheating to within 100 degrees of the solder's peak temperature is essential to minimize thermal shock. Once the soldering process has been completed, it is still necessary to ensure that any further thermal shocks are avoided. One possible cause of thermal shock is hot printed circuit boards being removed from the solder process and subjected to cleaning solvents at room temperature. The boards must be allowed to cool gradually to less than 50ºC before cleaning. Lead–free (Pb-free) Soldering Recommendations CH series devices have silver-platinum terminals (Ag/Pt), and the recommended Lead-free solder is 96.5/3.0/0.5 (SnA gCu) with an RMA flux, though there is a wide selection of pastes and fluxes available that should be compatible. The reflow profile must be constrained by the maximums in the Lead–free Reflow Profile. For Lead–free Wave soldering, the Wave Solder Profile still applies. Note: the Lead–free paste, flux and profile were used for evaluation purposes by Littelfuse, based upon industry standards and practices. There are multiple choices of all three available, it is advised that the customer explores the optimum combination for their process as processes vary considerably from site to site. PREHEAT ZONE PREHEAT DWELL RAMP RATE <2°C/s MAXIMUM TEMPERATURE 230°C TEMPERATURE °C TIME (MINUTES) 250 200 150 100 40-80 SECONDS ABOVE 183°C TIME (MINUTES) 300 250 200 150 100 MAXIMUM WA VE 260°C SECOND PREHEA T FIRST PREHEAT TEMPERATURE °C MAXIMUM TEMPERATURE 260˚C, TIME WITHIN 5˚C OF PEAK

20 SECONDS MAXIMUM

<3˚C/s 60 - 150 SEC > 217˚C TEMPERATURE °C TIME (MINUTES) 300 250 200 150 100 Reflow Solder Profile Wave Solder Profile Lead–free Re-flow Solder Profile Figure 7 Figure 8 Figure 9

©2010 Littelfuse, Inc. Revision: August 30, 2010 CH Varistor Series Surface Mount Varistors > CH Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/CH.html for current information. CH Series Dimensions NOTE 1 C A B E L W D Symbol Inches Millimeters Min Max Min Max A 0.402 10.210 B 0.216 5.500 C 0.087 2.210 D - 0.080 - 2.03 E 0.016 0.050 0.41 1 .27 L 0.311 0.335 7 .90 8.51 W 0.185 0.207 4.70 5.26 PAD LAYOUT DIMENSIONS CHIP LAYOUT DIMENSIONS Part Numbering System V 220 CH 8 RELATIVE SIZE INDICATOR LITTELFUSE VARISTOR SERIES DESIGNATOR NOMINAL VARISTOR VOLTAGE PACKAGING OPTIONS No Letter: Standard 13 Inch Reel T: 7 Inch Reel S: Bulk Pack X NOTE: Avoid metal runs in this area. Soldering recommendations: Material - 62/36/2 Sn/Pb/

©2010 Littelfuse, Inc. Revision: August 30, 2010 CH Varistor Series Surface Mount Varistors > CH Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/CH.html for current information. Notes : t$POGPSNTUP&*" 3FWJTJPO" t$BOCFTVQQMJFEUP*&$1VCMJDBUJPO Standard Packaging* CH Series varistors are always shipped in tape and reel. The standard 13-inch reel utilized contains 4000 pieces. Note also that the CH Series receives no branding on the chip itself. *NOTE: It is recommended that parts be kept in the sealed bag provided and that parts be used as soon as possible when removed from bags. Special Packaging Option 1 7 -inch reels containing 1000 pieces are available. To order 7-inch reels add a 'T' suffix to the part number; e.g., V47CH8T . Option 2 For small quantities (less than 100 pieces) the units are shipped bulk pack. To order, add a 'S' suffix to the part number; e.g., V47CH8S. Symbol Parameter Size (mm) B0 Cavity Length 8.5 -/+ 0.1 A0 Cavity Width 5.5 -/+ 0.1 K0 Cavity Depth 2.0 Min. H0 Ref. Plane for A0 and B0 + 0.10 0.3 - 0.05 R1, R2, R3 Tape Cavity Radii 0.5 Max. T Carrier Tape Thickness 1 .0 Max. T1 Cover Tape Thickness 0.1 Max. E Sprocket Hole from Edge 1 .75 -/+ 0.1 P0 Sprocket Hole Pitch 4.0 -/+ 0.1 D Sprocket Hole Diameter + 0.1 1 .5 - 0.0 P2 Hole Centre to Component Centre 2.0 -/+ 0.15 R4 Min. Bending Radius 30.5 Min. D1 Ejection Hole Diameter 1 .5 Min. K Overall Thickness 3.0 Min. P Pitch Of Component 8.0 -/+ 0.1 F Sprocket Hole to Ejection Hole 7 .5 -/+ 0.1 W Carrier Tape Width 16.0 -/+ 0.3 DP2PP0 E FW CROSS SECTION (REF. PLANE FOR A0 & B0) T B0H0 SECTION THRU CAVITY T K MINIMUM BENDING RADIUS R CAVITY DETAILS REELED RADIUS DET AILS PLAN VIEW OF STRIP T ape and Reel Specifications