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1 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 benefts ? s urface mount form factor ? operating ambient temperature of ?55c to +150c ? superior operating performance rated at 150c (aec-q200 compliance) ? o perating voltage range of 3 v to 170 v ? a c voltage range (vrms) of 2 v to 130 v ? h igh resistance to cyclic temperature stress ? low leakage currents after 1,000 hours rated at 150c ? h igh energy absorption capability ? a vailable case sizes: 0603, 0805, 1206, 1210, 1812, 2220 ? s hort response time ? b road range of current and energy handling capabilities ? l ow clamping voltage C uc ? non-sensitive to mildly activated fuxes ? b arrier type end terminations solderable with pb-free solders according to jedec jCstdC020c and iec 60068C2C58 ? u l 1499, 3rd edition and csa c22.2 file e326499 section 8 ? r ohs 2 2011/65/ec, reach compliant ? aec-q200 qualifed grade 1 overview kemet's ve series of high temperature, low voltage varistors are designed to protect sensitive electronic devices against high voltage surges in the low voltage region. in addition to superior operating performance at rated 150c (aecCq200 compliance) they offer excellent tr ansient energy absorption due to improved energy volume distribution and power dissipation. applications typical applications include transient over-voltage protection in automotive assembly motors and controllers as well as surge protection of non-automotive electronic products exposed to over-heating, i.e., consumer, telecommunication or industrial. load dump and jump start protection of 12 to 24 v supply systems. protection of integrated circuits and other components at the circuit board level including the suppression of inductive switching or other transient events such as surge voltage. esd protection for components sensitive to iec 1000C4C2, milstd 883c method 3015.7 and other industry spec. replacement of larger surface mount tvs zeners in many applications. designed to achieve electromagnetic compliance of end products and provide on-board transient voltage protection of ics and transistors. surface mount varistors ve series high temperature 150c one world. one kemet
2 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 ordering information ve 0603 m 300 r 002 series chip size code tolerances rated peak single pulse transient current (a) packaging/ termination maximum continuous working voltage (vrms ac) varistor smd high temperature 150c low voltage multilayer chip 0603 = 0603 0805 = 0805 1206 = 1206 1210 = 1210 1812 = 1812 2220 = 2220 k = 10% l = 15% m = 20% 300 = 30 101 = 100 121 = 120 151 = 150 201 = 200 251 = 250 301 = 300 401 = 400 501 = 500 601 = 600 801 = 800 102 = 1,000 122 = 1,200 (first two digits represent signifcant fgures. third digit s pecifes number of zeros.) r = reel 180 mm/ni sn barrier terminations 002 = 2 004 = 4 006 = 6 008 = 8 011 = 11 014 = 14 017 = 17 020 = 20 025 = 25 030 = 30 035 = 35 040 = 40 050 = 50 060 = 60 075 = 75 095 = 95 115 = 115 130 = 130 dimensions C millimeters l 0505 t size code l w t max 0603 1.60.20 0.800.10 0.95 0805 2.00.25 1.250.20 0.80 1206 3.20.30 1.600.20 0.85 1210 3.20.30 2.500.25 0.85 1812 4.70.40 3.200.30 1.25 2220 5.70.50 5.000.40 1.25 smd varistors ve series ? smd 150c low voltage high temperature varistors
3 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 environmental compliance rohs 2 2011/65/ec, reach performance characteristics continuous units value steady state applied voltage dc voltage range (v dc ) v 3 to 170 ac voltage range (v rms ) v 2 to 130 transient peak single pulse surge current, 8/20 s waveform (i max ) a 30 to 1200 single pulse surge energy, 10/1000 s waveform (w max ) j 0.1 to 12.2 operating ambient temperature c ?55 to +150 storage temperature range c ?55 to +150 threshold voltage temperature coeffcient %/c < + 0.05 response time ns < 2 climatic category 55/150/56 qualifcations reliability parameter test tested according to condition to be satisfed after testing ac/dc bias reliability ac/dc life test cecc 42200, test 4.20 or iec 1051C1, test 4.20. aecCq200 test 8 C 1,000 hours at uct | vn (1 ma)| < 10 % pulse current capability i max 8/20 s cecc 42200, test c 2.1 or iec 1051C1, test 4.5. 10 pulses in the same direction at 2 pulses per minute at maximum peak current for 10 pulses | vn (1 ma)| < 10 % no visible damage pulse energy capability w max 10/1,000 s cecc 42200, test c 2.1 or iec 1051C1, test 4.5. 10 pulses in the same direction at 1 pulses every 2 minutes at maximum peak current for 10 pulses | vn (1 ma)| < 10 % no visible damage wld capability wld x 10 iso 7637, test pulse 5, 10 pulses at rate 1 per minute | increase of supply voltage to v v jump for 1 minute | smd varistors ve series ? smd 150c low voltage high temperature varistors
4 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 qualifcations cont'd reliability parameter test tested according to condition to be satisfed after testing environmental and storage reliability climatic sequence cecc 42200, test 4.16 or iec 1051C1, test 4.17. a) dry heat, 16 hours, uct, test ba, iec 68C2C2 b) damp heat, cyclic, the frst cycle: 55c, 93 % rh, 2 4 hours, test db 68C2C4 c) cold, lct, 2 hours test aa iec 68C2C1 d) damp heat cyclic, remaining 5 cycles: 55c, 93 % r h, 24 hour/cycle, test bd, iec 68C2C30 | vn (1 ma)| < 10 % thermal shock cecc 42200, test 4.12, test na, iec 68C2C14, aecCq200 test 16, 5 cycles uct/lct, 30 minutes | vn (1 ma)| < 10 % no visible damage steady state damp heat cecc 42200, test 4.17, test ca, iec 68C2C3, aecCq200 test 6, 56 days, 40c, 93% rh. aecCq200 t est7: bias, rh, t all at 85. | vn (1 ma)| < 10 % storage test iec 68C2C2, test ba, aecCq200 test 3, 1,000 hours at maximum storage temperature | vn (1 ma)| < 5 % mechanical reliability solderability cecc 42200, test 4.10.1, test ta iec 68C2C20 solder bath and refow method solderable at shipment and after 2 year of storage, criteria > 95% must be covered by solder for refow m eniscus resistance to soldering heat cecc 42200, test 4.10.2, test tb, iec 68C2C20 solder bath and refow method | vn (1 ma)| < 5 % terminal strength jisCcC6429, app. 1, 18n for 60 seconds C same for aecCq200 test 22 no visual damage board flex jisCcC6429, app. 2, 2 mm minimum aecCq200 test 21 C board fex: 2 mm fex minimum | vn (1 ma)| < 2 % no visible damage vibration cecc 42200, test 4.15, test fc, iec 68C2C6, aecC q200 test 14. frequency range 10 to 55 hz (aec: 10 C 2,000 hz) amplitude 0.75 m/s2 or 98 m/s2 (aec: 5 g's for 20 minutes) total duration 6 hours (3x2h) (aec: 12 cycles each of 3 directions) waveshape C half sine | vn (1 ma)| < 10 % no visible damage mechanical shock cecc 42200, test 4.14, test ea, iec 68C2C27, aecCq200 test 13. acceleration = 490 m/s2 (aec: mil-stdC202Cmethod 213), pulse duration = 11 ms, waveshape C half sine; number of shocks = 3x6 | vn (1 ma)| < 10 % no visible damage electrical transient conduction isoC7637C1 pulses aecCq200 test 30: test pulses 1 to 3. also other pulses C freestyle. | vn (1 ma)| < 10 % no visible damage smd varistors ve series ? smd 150c low voltage high temperature varistors
5 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 reliability in general, reliability is the ability of a component to perform and maintain its functions in routine circumstances, as well as hostile or unexpected circumstances. the mean life of series components is a function of: ? f actor of applied voltage ? a mbient temperature mean life is closely related to failure rate (formula). mean life (ml) is the arithmetic mean (average) time to failure of a component. failure rate is the frequency with which an engineered system or component fails, expressed for example in failures per hour. failure rate is usually time dependent, an intuitive corollary is that the rate changes over time versus the expected life cycle of a system. failure rate formula C calculation = 10 9 [ft] ml[h] fav C factor of applied voltage = vapl v max vapl = applied voltage v max = maximum operating voltage years mean life on arrhenius model 1,000 100 10 10 3 10 4 10 5 10 6 10 7 10 8 1 h 120 100 80 60 40 20 c t a mean life (ml) fav 0,7 0,8 0,9 1,0 smd varistors ve series ? smd 150c low voltage high temperature varistors
6 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 table 1 C ratings & part number reference kemet part number l (mm) w (mm) t max (mm) v rms vdc v n 1 ma v c i c 8/20 s (a) w max 10/1000 s (j) p max (w) i max 8/20 s (a) c typ at 1 khz (pf) l typ 100ma/ns (nh) ve0603m300r002 1.6 0.20 0.80 0.10 0.95 2 3 4 12 1 0.1 0.003 30 360 1.0 ve0805m101r002 2.0 0.25 1.25 0.20 0.80 2 3 4 12 1 0.1 0.005 100 930 1.5 ve1206m151r002 3.2 0.30 1.60 0.20 0.85 2 3 4 12 1 0.2 0.008 150 4000 1.8 ve0603m300r004 1.6 0.20 0.80 0.10 0.95 4 5.5 8 16 1 0.1 0.003 30 295 1.0 ve0805m101r004 2.0 0.25 1.25 0.20 0.80 4 5.5 8 16 1 0.1 0.005 100 695 1.5 ve1206m151r004 3.2 0.30 1.60 0.20 0.85 4 5.5 8 16 1 0.3 0.008 150 3300 1.8 ve1210m251r004 3.2 0.30 2.50 0.25 0.85 4 5.5 8 16 3 0.4 0.010 250 5000 1.8 ve1812m501r004 4.7 0.40 3.20 0.30 1.25 4 5.5 8 16 5 0.8 0.015 500 10000 2.5 ve2220m102r004 5.7 0.50 5.00 0.40 1.25 4 5.5 8 16 10 1.5 0.020 1000 19500 3.0 ve0603m300r006 1.6 0.20 0.80 0.10 0.95 6 8 11 23 1 0.1 0.003 30 260 1.0 ve0805m101r006 2.0 0.25 1.25 0.20 0.80 6 8 11 23 1 0.2 0.005 100 560 1.5 ve1206m151r006 3.2 0.30 1.60 0.20 0.85 6 8 11 23 1 0.5 0.008 150 2600 1.8 ve1210m301r006 3.2 0.30 2.50 0.25 0.85 6 8 11 23 3 0.8 0.010 300 4100 1.8 ve1812m501r006 4.7 0.40 3.20 0.30 1.25 6 8 11 23 5 1.0 0.015 500 7500 2.5 ve2220m122r006 5.7 0.50 5.00 0.40 1.25 6 8 11 23 10 3.8 0.020 1200 17000 3.0 ve0603l300r008 1.6 0.20 0.80 0.10 0.95 8 11 15 27 1 0.1 0.003 30 240 1.0 ve0805l121r008 2.0 0.25 1.25 0.20 0.80 8 11 15 27 1 0.2 0.005 120 475 1.5 ve1206l201r008 3.2 0.30 1.60 0.20 0.85 8 11 15 27 1 0.6 0.008 200 2000 1.8 ve1210l401r008 3.2 0.30 2.50 0.25 0.85 8 11 15 27 3 1.1 0.010 400 3400 1.8 ve1812l501r008 4.7 0.40 3.20 0.30 1.25 8 11 15 27 5 1.9 0.015 500 6300 2.5 ve2220l122r008 5.7 0.50 5.00 0.40 1.25 8 11 15 27 10 4.3 0.020 1200 15000 3.0 ve0603k300r011 1.6 0.20 0.80 0.10 0.95 11 14 18 35 1 0.2 0.003 30 210 1.0 ve0805k121r011 2.0 0.25 1.25 0.20 0.80 11 14 18 35 1 0.3 0.005 120 400 1.5 ve1206k201r011 3.2 0.30 1.60 0.20 0.85 11 14 18 35 1 0.6 0.008 200 1300 1.8 ve1210k401r011 3.2 0.30 2.50 0.25 0.85 11 14 18 35 3 1.3 0.010 4 00 2600 1.8 ve1812k801r011 4.7 0.40 3.20 0.30 1.25 11 14 18 35 5 2.0 0.015 800 5100 2.5 ve2220k122r011 5.7 0.50 5.00 0.40 1.25 11 14 18 35 10 5.5 0.020 1200 12000 3.0 ve0603k300r014 1.6 0.20 0.80 0.10 0.95 14 18 22 40 1 0.3 0.003 30 195 1.0 ve0805k121r014 2.0 0.25 1.25 0.20 0.80 14 18 22 40 1 0.4 0.005 120 355 1.5 ve1206k201r014 3.2 0.30 1.60 0.20 0.85 14 18 22 40 1 0.6 0.008 200 950 1.8 ve1210k401r014 3.2 0.30 2.50 0.25 0.85 14 18 22 40 3 1.6 0.010 400 2000 1.8 ve1812k801r014 4.7 0.40 3.20 0.30 1.25 14 18 22 40 5 2.4 0.015 800 4200 2.5 ve2220k122r014 5.7 0.50 5.00 0.40 1.25 14 18 22 40 10 6.0 0.020 1200 9400 3.0 ve0603k300r017 1.6 0.20 0.80 0.10 0.95 17 22 27 46 1 0.3 0.003 30 185 1.0 ve0805k121r017 2.0 0.25 1.25 0.20 1.05 17 22 27 46 1 0.4 0.005 120 315 1.5 ve1206k201r017 3.2 0.30 1.60 0.20 1.25 17 22 27 46 1 0.7 0.008 200 740 1.8 ve1210k401r017 3.2 0.30 2.50 0.25 1.35 17 22 27 46 3 1.8 0.010 400 1700 1.8 ve1812k801r017 4.7 0.40 3.20 0.30 1.25 17 22 27 46 5 2.8 0.015 800 3500 2.5 ve2220k122r017 5.7 0.50 5.00 0.40 1.25 17 22 27 46 10 7.5 0.020 1200 7700 3.0 ve0603k300r020 1.6 0.20 0.80 0.10 0.95 20 26 33 56 1 0.3 0.003 30 175 1.0 ve0805k121r020 2.0 0.25 1.25 0.20 1.05 20 26 33 56 1 0.4 0.005 120 290 1.5 ve1206k201r020 3.2 0.30 1.60 0.20 1.25 20 26 33 56 1 0.8 0.008 200 620 1.8 ve1210k401r020 3.2 0.30 2.50 0.25 1.35 20 26 33 56 3 2.0 0.010 400 1400 1.8 ve1812k801r020 4.7 0.40 3.20 0.30 1.55 20 26 33 56 5 3.0 0.015 800 3000 2.5 ve2220k122r020 5.7 0.50 5.00 0.40 1.45 20 26 33 56 10 8.0 0.020 1200 6500 3.0 ve0603k300r025 1.6 0.20 0.80 0.10 0.95 25 31 39 67 1 0.1 0.003 30 165 1.0 ve0805k121r025 2.0 0.25 1.25 0.20 1.05 25 31 39 67 1 0.2 0.005 120 260 1.5 ve1206k201r025 3.2 0.30 1.60 0.20 1.25 25 31 39 67 1 1.0 0.008 200 510 1.8 ve1210k401r025 3.2 0.30 2.50 0.25 1.45 25 31 39 67 3 1.8 0.010 400 1060 1.8 kemet part number l mm w mm t max mm v rms v v dc v v n 1 ma v v c v i c 8/20 s a w max 10/1000 s j pmax w i max 8/20 s a c typ @ 1 khz pf l typ 100ma/ns nh smd varistors ve series ? smd 150c low voltage high temperature varistors
7 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 table 1 C ratings & part number reference (cont'd) kemet part number l (mm) w (mm) t max (mm) v rms vdc v n 1 ma v c i c 8/20 s (a) w max 10/1000 s (j) p max (w) i max 8/20 s (a) c typ at 1 khz (pf) l typ 100ma/ns (nh) ve1812k801r025 4.7 0.40 3.20 0.30 1.55 25 31 39 67 5 3.9 0.015 800 2300 2.5 ve2220k122r025 5.7 0.50 5.00 0.40 1.45 25 31 39 67 10 9.5 0.020 1200 5000 3.0 ve0603k300r030 1.6 0.20 0.80 0.10 0.95 30 38 47 79 1 0.1 0.003 30 160 1.0 ve0805k121r030 2.0 0.25 1.25 0.20 1.05 30 38 47 79 1 0.2 0.005 120 230 1.5 ve1206k201r030 3.2 0.30 1.60 0.20 1.25 30 38 47 79 1 1.2 0.008 200 450 1.8 ve1210k301r030 3.2 0.30 2.50 0.25 1.45 30 38 47 79 3 2.1 0.010 300 850 1.8 ve1812k801r030 4.7 0.40 3.20 0.30 1.55 30 38 47 79 5 4.4 0.015 800 1800 2.5 ve2220k122r030 5.7 0.50 5.00 0.40 1.45 30 38 47 79 10 12.2 0.020 1200 4000 3.0 ve1206k121r035 3.2 0.30 1.60 0.20 1.25 35 45 56 92 1 0.6 0.008 120 400 1.8 ve1210k251r035 3.2 0.30 2.50 0.25 1.45 35 45 56 92 3 2.2 0.010 250 670 1.8 ve1812k601r035 4.7 0.40 3.20 0.30 1.55 35 45 56 92 5 4.2 0.015 600 1340 2.5 ve2220k102r035 5.7 0.50 5.00 0.40 1.45 35 45 56 92 10 7.6 0.020 1000 3000 3.0 ve1206k121r040 3.2 0.30 1.60 0.20 1.25 40 56 68 112 1 0.8 0.008 120 370 1.8 ve1210k251r040 3.2 0.30 2.50 0.25 1.45 40 56 68 112 3 2.4 0.010 250 570 1.8 ve1812k601r040 4.7 0.40 3.20 0.30 1.55 40 56 68 112 5 4.8 0.015 600 1000 2.5 ve2220k102r040 5.7 0.50 5.00 0.40 1.45 40 56 68 112 10 9.2 0.020 1000 2200 3.0 ve1206k121r050 3.2 0.30 1.60 0.20 1.65 50 65 82 137 1 0.8 0.008 120 340 1.8 ve1210k251r050 3.2 0.30 2.50 0.25 1.75 50 65 82 137 3 1.7 0.010 250 470 1.8 ve1812k401r050 4.7 0.40 3.20 0.30 1.85 50 65 82 137 5 4.8 0.015 400 710 2.5 ve2220k801r050 5.7 0.50 5.00 0.40 1.85 50 65 82 137 10 5.8 0.020 800 1500 3.0 ve1206k121r060 3.2 0.30 1.60 0.20 1.65 60 85 100 167 1 0.9 0.008 120 330 1.8 ve1210k251r060 3.2 0.30 2.50 0.25 1.75 60 85 100 167 3 2.2 0.010 250 390 1.8 ve1812k401r060 4.7 0.40 3.20 0.30 1.85 60 85 100 167 5 5.8 0.015 400 580 2.5 ve2220k801r060 5.7 0.50 5.00 0.40 1.85 60 85 100 167 10 6.2 0.020 800 1000 3.0 ve1812k401r075 4.7 0.40 3.20 0.30 1.90 75 100 120 202 5 5.8 0.015 4 00 440 2.5 ve2220k801r075 5.7 0.50 5.00 0.40 1.90 75 100 120 202 10 6.2 0.020 800 700 3.0 ve1812k301r095 4.7 0.40 3.20 0.30 1.90 95 125 150 252 5 5.2 0.015 300 340 2.5 ve2220k501r095 5.7 0.50 5.00 0.40 1.90 95 125 150 252 10 7.4 0.020 500 600 3.0 ve1812k301r115 4.7 0.40 3.20 0.30 1.90 115 150 180 302 5 5.2 0.015 300 310 2.5 ve2220k501r115 5.7 0.50 5.00 0.40 1.90 115 150 180 302 10 7.4 0.020 500 560 3.0 ve2220k501r130 5.7 0.50 5.00 0.40 1.90 130 170 205 342 10 7.4 0.020 500 500 3.0 kemet part number l mm w mm t max mm v rms v v dc v v n 1 ma v v c v i c 8/20 s a w max 10/1000 s j pmax w i max 8/20 s a c typ @ 1 khz pf l typ 100ma/ns nh smd varistors ve series ? smd 150c low voltage high temperature varistors
8 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 soldering popular soldering techniques used for surface mounted components are wave and infrared refow processes. both processes can be per formed with pb-containing or pb-free solders. the termination option available for these soldering techniques is barrier type end terminations. end termination designation recommended and suitable for component rohs compliant ni sn barrier type end termination ni r1 pb-containing and pb-free soldering yes wave soldering C this process is generally associated with discrete components mounted on the underside of printed circuit boards, or for large top-side components with bottom-side mounting tabs to be attached, such as the frames of transformers, relays, connectors, etc. smd varistors to be wave soldered are frst glued to the circuit board, usually with an epoxy adhesive. when all components on the pcb ha ve been positioned and an appropriate time is allowed for adhesive curing, the completed assembly is then placed on a conveyor and run through a single, double wave process. infrared refow soldering C these refow processes are typically associated with top-side component placement. this technique utilizes a mixture of adhesive and solder compounds (and sometimes fuxes) that are blended into a paste. the paste is then screened onto pcb soldering pads specifcally designed to accept a particular sized smd component. the recommended solder paste wet layer thickness is 100 to 300 m. once the circuit board is fully populated with md components, it is placed in a refow environment, where the paste is heated to slightly above its eutectic temperature. when the solder paste refows, the smd components are attached to the solder pads. solder fluxes C solder fuxes are generally applied to populated circuit boards to clean oxides forming during the heating process and to facilitate the fowing of the solder. solder fuxes can be either a part of the solder paste compound or can be separate materials, usually fuids. recommended fuxes are: ? non-activated (r) fuxes, whenever possible ? mildly activated (rma) fuxes of class l3cn ? class orl o activ ated (ra), water soluble or strong acidic fuxes with a chlorine content > 0.2 wt. % are not recommended. the use of such fuxes could cr eate high leakage current paths along the body of the varistor components. when a fux is applied prior to wave soldering, it is important to completely dry any residual fux solvents prior to the soldering process. thermal shock C to avoid the possibility of generating stresses in the varistor chip due to thermal shock, a preheat stage to within 100 c of the peak soldering process temperature is recommended. additionally, smd varistors should not be subjected to a temperature gr adient greater than 4 c/sec., with an ideal gradient being 2 c/sec. peak temperatures should be controlled. wave and refow soldering conditions for smd varistors with pb-containing solders ar e shown in fig. 1 and 2 r espectively, while w ave and refow soldering conditions for smd v aristors with pb-free solders are shown in fig, 1 and 3 smd varistors ve series ? smd 150c low voltage high temperature varistors
9 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 soldering cont'd whenever several different types of smd components are being soldered, each having a specifc soldering profle, the soldering profle with the least heat and the minimum amount of heating time is r ecommended. once soldering has been completed, it is necessary to minimize the possibility of thermal shock by allowing the hot pcb to cool to less than 50 c before cleaning. inspection criteria C the inspection criteria to determine acceptable solder joints, when wave or infrared refow processes are used, will depend on several key variables, principally termination material process profles. pb-contining wave and ir refow soldering C typical before and after soldering results for barrier type end terminations can be seen in fig. 4. barrier type terminated varistors form a reliable electrical contact and metallurgical bond between the end terminations and the solder pads. the bond between these two metallic surfaces is exceptionally strong and has been tested by both vertical pull and lateral (horizontal) push tests. the results exceed established industry standards for adhesion. the solder joint appearance of a barrier type terminated varistor shows that solder forms a metallurgical junction with the thin tin-alloy (over the barrier layer), and due to its small volume climbs the outer surface of the terminations, the meniscus will be slightly lower. this optical appearance should be taken into consideration when programming visual inspection of the pcb after soldering. ni sn barrier type end terminations fig. 4 C soldering criterion in case of wave and ir refow pb-containing soldering pb-fr ee wave and ir refow soldering C typical before and after soldering results for barrier type end terminations are given in a phenomenon knows as mirror or negative meniscus. solder forms a metallurgical junction with the entire volume of the end termination, i.e. it diffuses from pad to end termination across the inner side, forming a mirror or negative meniscus. the height of the solder penetration can be clearly seen on the end termination and is always 30% higher than the chip height. smd varistors ve series ? smd 150c low voltage high temperature varistors
10 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 soldering cont'd solder test and retained samples C refow soldering test based on j-std-020d.1 and soldering test by dipping based on iec 60068- 2 for pb-free solders are preformed on each production lot as shown in the following chart. test results and accompanying samples are retained for a minimum of two (2) years. the solderability of a specifc lot can be checked at any time within this period should a cust omer require this information. test resistance to flux solderability static leaching (simulation of refow soldering) dynamic leaching (simulation of wave soldering) parameter soldering method dipping dipping dipping dipping with agitation flux l3cn, orl0 l3cn, orl0, r l3cn, orl0, r l3cn, orl0, r pb solder 62sn/36pb/2 ag pb s oldering t emperature ( c) 2355 2355 2605 2355 pb-free solder sn96/cu0,4C0,8/3C4ag pb-free soldering temperature (c) 2505 2505 2805 2505 soldering time (s) 2 210 10 > 15 burn-in conditions vdc max , 48 h acceptance criterion dvn < 5 %, i dc must stay unchanged > 95 % of end termination must be covered by solder > 95 % of end termination must be intact and covered by solder > 95 % of end termination must be intact and covered by solder rework criteria soldering iron C unless absolutely necessary, the use of soldering irons is not recommended for reworking varistor chips. if no other means of rework is available, the following criteria must be strictly followed: ? do not allow the tip of the iron to directly contact the top of the chip ? do not exceed the following soldering iron specifcations: output p ower: 30 w atts maximum temperature of soldering iron tip: 280c maximum soldering time: 10 seconds maximum st orage conditions C smd varistors should be used within 1 year of purchase to avoid possible soldering problems caused by oxidized terminals. the storage environment should be controlled, with humidity less than 40% and temperature between -25 and 45 c. varistor chips should alwa ys be stored in their original packaged unit. smd varistors ve series ? smd 150c low voltage high temperature varistors
11 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 soldering pad confguration w l t m b c b a d a size l (mm) w (mm) h (mm) t max (mm) a (mm) b (mm) c (mm) d (mm) 0603 1.60.20 0.800.10 0.50.25 1.0 1.0 1.0 0.6 2.6 0805 2.00.25 1.250.20 0.50.25 1.1 1.4 1.2 1.0 3.4 1206 3.20.30 1.600.20 0.50.25 1.6 1.8 1.2 2.1 4.5 1210 3.20.30 2.500.25 0.50.25 1.8 2.8 1.2 2.1 4.5 1812 4.70.40 3.200.30 0.50.25 1.9 3.6 1.5 3.2 6.2 2220 5.70.50 5.000.40 0.50.25 1.9 5.5 1.5 4.2 7.2 packaging voltage range (v) chip size 0603 0805 1206 1210 1812 2220 6iip7mi 180 180 180 180 180 180 2 to 14 4000 4000 4000 4000 1500 1500 17 3500 3500 2500 2500 1500 1500 20 to 40 3500 3500 2500 2500 1000 1000 50 to 130 2000 2000 1000 1000 smd varistors ve series ? smd 150c low voltage high temperature varistors
12 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 construction glass passivation detailed cross section inner electrodes (ag) terminate edge terminate edge zno layer inner electrodes (ag) glass passivation termination (ag/pd, ni/sn) termination (ag/pd, ni/sn) smd varistors ve series ? smd 150c low voltage high temperature varistors
13 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 taping & reel specifcations tape size (mm) 8 mm 12 mm 0603 0805 1206 1210 1812 2220 ao 1.2 1.6 1.9 2.9 3.75 5.6 bo 1.9 2.4 3.75 3.7 5 6.25 ko maximum 1.1 1.1 1.8 2 2 2 b 1 maximum 4.35 4.35 4.35 4.35 8.2 8.2 d 1 minimum 0.3 0.3 0.3 0.3 1.5 1.5 e 2 minimum 6.25 6.25 6.25 6.25 10.25 10.25 p 1 4 4 4 4 8 8 f 3.5 3.5 3.5 3.5 5.5 5.5 w 8.0 8.0 8.0 8.0 12.0 12.0 t 2 maximum 3.5 3.5 3.5 3.5 6.5 6.5 w 1 8.4+1.5 8.4+1.5 8.4+1.5 8.4+1.5 12.4+2 12.4+2 w 2 maximum 14.4 14.4 14.4 14.4 18.4 18.4 w 3 7.9...10.9 7.9...10.9 7.9...10.9 7.9...10.9 11.9...15.4 11.9...15.4 a 180 180 180 180 180 180 smd varistors ve series ? smd 150c low voltage high temperature varistors
14 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 terms and defnitions term symbol defnition rated ac voltage v rms maximum continuous sinusoidal ac voltage (<5% total harmonic distortion) which may be applied to the component under continuous operation conditions at 25c rated dc voltage v dc maximum continuous dc voltage (<5% ripple) which may be applied to the component under continuous operating conditions at 25c the current passing through the varistor at vdc and at 25c or at any other specifed temperature varistor voltage v n voltage across the varistor measured at a given reference current in reference current i n reference current = 1 ma dc clamping voltage protection level v c the peak voltage developed across the varistor under standard atmospheric conditions, when passing an 8/20 s class current pulse minute for the 8/20 s pulse a fgure of merit measure of the varistor clamping effectiveness as defned by the symbols v c /v app , where (v app = v rms or v dc ) jump start transient v jump the jump start transient resulting from the temporary application of an overvoltage in excess of the rated battery voltage. the circuit power supply may be subjected to a temporary overvoltage condition due to the voltage regulation failing or it may be deliberately generated when it becomes necessary to boost start the car rated single pulse transient energy w max energy which may be dissipated for a single 10/1000 s pulse of a maximum rated current, with rated ac voltage or rated dc voltage also applied, without causing device failure load dump transient wld load dump is a transient which occurs in an automotive environment. it is an exponentially decaying positive voltage which occurs in the event of a battery disconect while the alternator is still generating charging current with other loads remaining on the alternator circuit at the time of battery disconect rated peak single pulse transient current i max maximum peak current which may be applied for a single 8/20 s pulse, with, rated line vo ltage also applies, without causing device failure rated transient average power dissipation p maximum average power which may be dissipated due to a group of pulses occurring within a specifed isolated time period, without causing device failure at 25c capacitance c capacitance between two terminals of the varistor measured at at 1 khz response time tr the time lag between application of a surge and varistor's "turn-on" conduction action varistor voltage temperature coeffcient at 85c C v n at 25c)/(v n at 25c) x 60c) x 100 i nsulation resistance ir minimum resistance between shorted terminals and varistor surface isolation voltage the maximum peak voltage which may be applied under continuous operating conditions between the varistor terminations and any conducting mounting surface operating temperature the range of ambient temperature for which the varistor is designed to operate continuously as defned by the temperature limits of its climatic category smd varistors ve series ? smd 150c low voltage high temperature varistors
15 ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? 864-963-6300 ? www.kemet.com v 0003_ve ? 10/26/2016 kemet electronic corporation sales off ces for a complete list of our global sales off ces, please visit www.kemet.com/sales. disclaimer all product specif cations, statements, information and data (collectively, the information) in this datasheet are subject to change. the customer is responsible for checking and verifying the extent to which the information contained in this publication is applicable to an order at the time the order is placed. all information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied. statements of suitability for certain applications are based on kemet electronics corporations (kemet) knowledge of typical operating conditions for such applications, but are not intended to constitute C and kemet specif cally disclaims C any warranty concerning suitability for a specif c customer application or use. the information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. any technical advice inferred from this information or otherwise provided by kemet with reference to the use of kemets products is given gratis, and kemet assumes no obligation or liability for the advice given or results obtained. although kemet designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component failures may still occur. accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage. although all productCrelated warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other measures may not be required. /)1)8mwevikmwivihvehiqevosj/)1)8)pigvsrmgw'svtsvemsr smd varistors ve series ? smd 150c low voltage high temperature varistors

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