Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series CH Varistor Series RoHS Description CH Series transient surge suppressors are small, metal-oxide varistors (MOVs) manufactured in leadless chip form. They are intended for use in a variety of applications from low voltage DC to off-line board-level protection. These devices, which have significantly lower profiles than traditional radial lead varistors, permit designers to reduce the size and weight and increase the reliability of their equipment designs. CH Series varistors are available in a voltage range from 14V to 275V (V ), and energy ratings up to 8J. M(AC)RMS See the Littelfuse Multilayer Suppressor Series also. Agency Approvals Recognized under the components program of Features Underwriters Laboratories. • RoHS compliant • Supplied in tape and reel or bulk pack Agency Agency Approval Agency File Number • Leadless, surface mount chip in 5 • No derating up to UL1449 E320116 x 8mm Size 125ºC ambient • Voltage ratings • High surge rated V 14V to 275V up to 600A M(AC)RMS Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous CH Series Units Steady State Applied Voltage AC Voltage Range (V ) 14 to 275 V M(AC)RMS DC Voltage Range (V ) 18 to 369 V M(DC) Transient Peak Pulse Current (I ) TM For 8/20µs Current (See Figure 2) 100 to 600 A Single Pulse Energy Range For 10/1000µs Current Wave (W ) 1.0 to 8.0 J TM Operating Ambient Temperature Range (T) -40 to +125 ºC A Storage Temperature Range (T ) -40 to +150 ºC STG Temperature Coefficient (αV) of Clamping Voltage (V) at Specified Test Current <0.01 %/ºC C 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. Additional Information Datasheet Resources Samples © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20

Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series Device Ratings and Specifications Maximum Ratings (125ºC) Specifications (25ºC) Continuous Transient Varistor Voltage at 1 mA DC Test Max Clamping Volt V at Typical Part V V Energy Peak Current Current Test Current (8/20µCs) Capacitance Number RMS DC (10/1000µ s) (8/20µs) V V W I MIN V MAX V I f=1MHz M(AC) M(DC) TM TM N(DC) C P (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 2506 108.0 120.0 132.0 200 10 300 V150CH8 95 127 3.0 2506 135.0 150.0 165.0 250 10 250 V180CH8 115 153 4.0 2506 162.0 180.0 198.0 295 10 120 V200CH8 130 175 4.0 2506 184.0 200.0 228.0 340 10 110 V220CH8 140 180 5.0 2506 198.0 220.0 242.0 360 10 105 V240CH8 150 200 5.0 2506 212.0 240.0 268.0 395 10 100 V360CH8 230 300 6.0 2507 324.0 360.0 396.0 595 10 70 V390CH8 250 330 7.0 2507 354.0 390.0 429.0 650 10 60 V430CH8 275 369 8.0 2507 389.0 430.0 473.0 710 10 50 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. The Typical Capacitance is for reference only. 5. *High Surge Option (up to 400A) available for relevant voltage ratings. 6. High surge option(up to 600A) available for relevant voltage ratings. 7. High surge option(up to 500A) available for relevant voltage ratings. 8. Ultrasonic welding process is not recommended for CH series. Current, Energy and Power Derating Curve Continuous power dissipation capability is not an applicable design requirement for a suppressor, unless transients 100 occur in rapid succession. Under this condition, the E 90 average power dissipation required is simply the energy U AL 80 (watt-seconds) per pulse times the number of pulses V D 70 per second. The power so developed must be within ATE 60 the specifications shown on the Device Ratings and F R 50 O Specifications Table for the specific device. Furthermore, NT 40 the operating values need to be derated at high tempera CE 30 R tures as shown in this diagram. Because varistors can only PE 20 dissipate a relatively small amount of average power they 10 are, therefore, not suitable for repetitive applications that 0 -55 50 60 70 80 90 100 110 120 130 140 150 involve substantial amounts of average power dissipation. Figure 1 AMBIENT TEMPERATURE (oC) FIGURE 1. CURRENT, ENERGY AND POWER DERATING CURVE © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20

Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series Peak Pulse Current Test Waveform 0 = Virtual Origin of Wave 1 T = Time from 10% to 90% of Peak ALUE 100 O1 = VirtuTa1 l =O rRigisine o Tf iWmaev e= 1.25 x T K V 90 T = TimTe 2F =ro mD e1c0a%y Ttoim 90e% of Peak EA T1 = VirtuEaxl aFmronptl etim: e = 1.25 • t F P T2 = VirtuFaolr T aimn e8 t/o2 0H aµlsf VCaulurere (nImt Wpualsvee Dfourrmat:ion) O 50 Example: For an 8/20 s Current Waveform: NT 8 s = T1 =8 µVsir t=ua Tl 1F r=o nRt iTsiem Teime RCE 20 s = T2 =2 0Vµirstu a=l TT2im =e Dtoe Hcaaylf TViamluee E P 10 O1 T TIME T1 Figure 2 T2 FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM Clamping Voltage for V22CH8 – V68CH8 Clamping Voltage for V120CH8 – V430CH8 500 4,000 400 MAXIMUM CLAMPING VOLTAGE MAXIMUM CLAMPING VOLTAGE M PEAK VOLTS (V)3210009876500000000 VVVVM2T5436A2O6798 T=DCCCCO -EHHHH 55L888856 oSVCINZ T(EDO C5 1) x 2R 58AomTCImNG M PEAK VOLTS (V)321,,,000987650000000000000000 M1T0AO0 =D T -EO5L 54 oS3CVI0Z V2VTEV02ON 0225( CD401 x0C2CH C5H)88 oHmR8C8AmTINGVV3V63049C300CHCH8H88 MAXIMU 432000 VVV322372CCCHHH888 MAXIMU 432000000V180CH8 V150CH8 V120CH8 1100-3 10-2 10-1 100 101 102 103 10100-3 10-2 10-1 100 101 102 103 104 Figure 3 PEAK AMPERES (A) Figure 4 PEAK AMPERES (A) FIGURE 3.CLAMPING VOLTAGE FOR V22CH8 - V68CH8 FIGURE 4.CLAMPING VOLTAGE FOR V120CH8 - V430CH8 Pulse Rating Curves Surge Current Rating Curves for V22CH8 - V56CH8 Surge Current Rating Curves for V120CH8 - V430CH8 500 1,000 200 12 MV2O2DCEHL8 S- IVZ5E6 C5 Hx 88mm 500 MV1O2D0CELH 8S I-Z VE4 53 0xC 8Hm8m 100 10 250 1 URRENT (A) 521000 110023 101401506 URRENT (A) 1052005 120 101201301405 C C RGE 5 RGE 10 106 SU 2 INDEFINITE SU 5 1 2.5 INDEFINITE 0.5 1 0.2 0.5 20 100 1,000 10,000 20 100 1,000 10,000 Figure 5 IMPULSE DURATION(µs) Figure 6 IMPULSE DURATION (µs) Npuobtleis:h Ief dp uslpseec riafitcianFtgiIosG nasUr,e Rb euExtc ie5t ed.doeSedsU, naRo stG hpiErfet vCoefU nVtRN th(RDeEC d)Ne (vaTitc seRp fAerocTimfiINe cdGo nc utCirnrUueinRntg)V otEof Smfu oFnrceOt itoRhna ,n a +n/d- 1to0 %pr ocvoiudled aremspullet. pTrhoitse tcytpioen o.f shift, which normally results in a decrease of VN(DC), may result in the device not meeting the original V22CH8 - V56CH8 © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20

Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series Lead (Pb) Soldering Recommendations The principal techniques used for the soldering of Reflow Solder Profile components in surface mount technology are IR Re-flow and Wave soldering. Typical profiles are shown on the right. 225500 CH series devices have silver-platinum terminals (Ag/Pt), MMAAXXIIMMUUMM TTEEMMPPEERRAATTUURREE 223300°°CC and the recommended solder is 62/36/2 (Sn/Pb/Ag), 60/40 220000 250 4400--8800 (RSMn/AP bs)o oldr e6r3 fl/3u7x .(Sn/Pb). Littelfuse also recommends an RE °CRE °C 115500 MAXIMUM 2T3E0M°CPERAAATBBSSUOOEERCCVVEEEOO NN1188DD33SS°°CC UU 200 ATAT RRAAMMPP RRAATTEE40-80 WToa avveo sido ltdheer ipnogs issi bthiliety m oof sgte sntererantuinogu ss toref sthsees p droucee tsos es. EMPEREMPERURE °C 111005000 PPRREEHHEEAATT DDWWEELL<<LL22°°CC//ssABSOECVEO N18D3S°C thermal shock, a preheat stage in the soldering process TTAT RAMP RATE is recommended, and the peak temperature of the solder PER 1055000 PPRREEHHEEAATT ZZOONNEE <2°C/s process should be rigidly controlled. EM PREHEAT DWELL T 00 5000 00..55 P R E11..H00E A T Z11O..55N E 22..00 22..55 33..00 33..55 44..00 When using a reflow process, care should be taken to ensure that the CH chip is not subjected to a thermal Figure 7 TTIIMMEE ((MMIINNUUTTEESS)) 0 gradient steeper than 4 degrees per second; the ideal 0 FF 0IIGG.5UU RR EE 1 11.044 .. RR EE 1FF.5LL OO WW SS2.OO0 LL DD EE 2RR.5 PP RR OO FF3.II0LL EE 3.5 4.0 gradient being 2 degrees per second. During the soldering Wave Solder Profile TIME (MINUTES) process, preheating to within 100 degrees of the solder's FIGURE 14. REFLOW SOLDER PROFILE peak temperature is essential to minimize thermal shock. 330000 Once the soldering process has been completed, it is MMAAXXIIMMUUMM WWAAVVEE 226600°°CC 225500 still necessary to ensure that any further thermal shocks 300 are avoided. One possible cause of thermal shock is hot E °CE °C 220000 MAXIMUM WAVE 260°C printed circuit boards being removed from the solder URUR 250 process and subjected to cleaning solvents at room ATAT 115500 RRC temperature. The boards must be allowed to cool gradually MPEMPERE ° 200 SSEECCOONNDD PPRREEHHEEAATT to less than 50ºC before cleaning. TETETU 110000 A 150 R FFIIRRSSTT PPRREEHHEEAATT E SECOND PREHEAT P 5500 M E 100 T 00 FIRST PREHEAT 5000..00 00..55 11..00 11..55 22..00 22..55 33..00 33..55 44..00 44..55 TTIIMMEE ((MMIINNUUTTEESS)) Figure 8 0 FFIIGGUURREE 1155.. WWAAVVEE SSOOLLDDEERR PPRROOFFIILLEE 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 TIME (MINUTES) Lead–free (Pb-free) Soldering Recommendations FIGURE 15. WAVE SOLDER PROFILE CH series devices have silver-platinum terminals (Ag/Pt), Lead–33f00r00ee Re-flow Solder Profile and the recommended Lead-free solder is 96.5/3.0/0.5 MMAAXXIIMMUUMM TTEEMMPPEERRAATTUURREE 225500˚˚CC,, TTIIMMEE WWIITTHHIINN 55˚˚CC OOFF PPEEAAKK (SnAgCu) with an RMA flux, though there is a wide 225500 2200 SSEECCOONNDDSS MMAAXXIIMMUUMM selection of pastes and fluxes available that should be 300 RRAAMMPP RRAATTEE CC MAXIMUM TEMPERATURE 260˚C, compatible. E °E °220000 TIME WITHIN 5˚C O<<33F˚˚ CCP//EssAK 6600 -- 115500 SSEECC URUR250 20 SECONDS MAXIMUM >> 221177˚˚CC The reflow profile must be constrained by the maximums RATRATC115500 RAMP RATE isno tldheer iLnega, dt–hfer eWe aRveefl Soowld Perro Pfirloefi. lFeo sr tLilel aadp–pflireese. Wave TEMPETEMPETURE °211000000 PPRREEHHEEAATT ZZOO<NN3EE˚C/s 60 >- 125107 ˚SCEC A150 R Note: the Lead–free paste, flux and profile were used for MPE 5500 evaluation purposes by Littelfuse, based upon industry TE100 PREHEAT ZONE 00 standards and practices. There are multiple choices of all 5000 11..00 22..00 33..00 44..00 55..00 66..00 77..00 three available, it is advised that the customer explores the TTIIMMEE ((MMIINNUUTTEESS)) optimum combination for their process as processes vary 0 FFIIGGUURREE 1166.. LLEEAADD--FFRREEEE RREE--FFLLOOWW SSOOLLDDEERR PPRROOFFIILLEE 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 considerably from site to site. Figure 9 TIME (MINUTES) Water cleaning solder paste is not recommended for FIGURE 16. LEAD-FREE RE-FLOW SOLDER PROFILE standard CH8 series. For water cleaning solder paste, we recommend the passivate glass coating version. Please see the ordering note section for the detailed suffix code. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20

Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series Part Numbering System V 220CH 8 X LITTELFUSE VARISTOR PACKAGING OPTIONS No Letter: Standard 13 Inch Reel NOMINAL VARISTOR T: 7 Inch Reel VOLTAGE S: Bulk Pack SERIES DESIGNATOR RELATIVE SIZE INDICATOR Dimensions PAD LAYOUT DIMENSIONS Inches Millimeters Symbol Min Max Min Max C A 0.402 10.210 B 0.216 5.500 C 0.087 2.210 NOTE 1 B D - 0.080 - 2.00 E 0.016 0.050 0.41 1.27 L 0.311 0.335 7.90 8.51 A W 0.185 0.207 4.70 5.26 Note: Avoid metal runs in this area. Proper cleaning process is needed to avoid flux residue. CHIP LAYOUT DIMENSIONS E D L W © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20

Metal-Oxide Varistors (MOVs) Surface Mount Varistors > CH Series Tape and Reel Specifications Symbol Parameter Size (mm) E P0 P P2 D K0 B0 Cavity Length 8.8 -/+ 0.1 A Cavity Width 5.5 -/+ 0.1 0 K Cavity Depth 2.0 Min. 0 F + 0.10 W B0 SECTION H Ref. Plane for A0 and B0 0.3 THRU 0 CAVITY - 0.05 R, R, R Tape Cavity Radii 0.5 Max. A0 1 2 3 D1 T1 T Carrier Tape Thickness 1.0 Max. PLAN VIEW OF STRIP T T Cover Tape Thickness 0.1 Max. 1 K E Sprocket Hole from Edge 1.75 -/+ 0.1 P Sprocket Hole Pitch 4.0 -/+ 0.1 T 0 + 0.1 CROSS SECTION D Sprocket Hole Diameter 1.5 (REF. PLANE FOR A0 & B0) R4 - 0.0 P Hole Centre to Component Centre 2.0 -/+ 0.15 MINIMUM 2 BENDING R Min. Bending Radius 30.5 Min. R1 H0 B0 R3 RADIUS D4 Ejection Hole Diameter 1.5 Min. 1 K Overall Thickness 3.0 Min. R2 A0 K0 REELED RADIUS DETAILS P Pitch Of Component 8.0 -/+ 0.1 CAVITY DETAILS F Sprocket Hole to Ejection Hole 7.5 -/+ 0.1 W Carrier Tape Width 16.0 -/+ 0.3 Notes : 1. Conforms to EIA-481-1, Revision A 2. Can be supplied to IEC P ublication 286-3 Standard Packaging* Special Packaging CH Series varistors are always shipped in tape and reel. Option 1 7-inch reels containing 1000 pieces are The standard 13-inch reel utilized contains 4000 pieces. available. To order 7-inch reels add a 'T' suffix to the part number; e.g., V47CH8T. Note also that the CH Series receives no branding on the Option 2 For small quantities (less than 100 pieces) the chip itself. units are shipped bulk pack. To order, add a 'S' suffix to the part number; e.g., V47CH8S. *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. Ordering Notes: X3313: HIGH SURGE RATING OPTION -- X3313-Passivative glass coating version: High surge rated up to 600A and suitable to use for water cleaning soldering paste Example: Standard Model Order As V33CH8 V33CH8X3313 Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/20/20