Surface Mount Varistors VE Series High Temperature 150C Overview Applications 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 (AEC-Q200 compliance) they offer excellent transient energy absorption due to improved energy volume distribution and power dissipation. 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 1000-4-2, 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. Benefits * Surface mount form factor * Operating ambient temperature of -55C to +150C * Superior operating performance rated at 150C (AEC-Q200 compliance) * Operating voltage range of 3 V to 170 V * AC voltage range (Vrms) of 2 V to 130 V * High resistance to cyclic temperature stress * Low leakage currents after 1,000 hours rated at 150C * High energy absorption capability * Available case sizes: 0603, 0805, 1206, 1210, 1812, 2220 * Short response time * Broad range of current and energy handling capabilities * Low clamping voltage - Uc * Non-sensitive to mildly activated fluxes * Barrier type end terminations solderable with Pb-free solders according to JEDEC J-STD-020C and IEC 60068-2-58 * RoHS 2 2011/65/EC, REACH compliant * AEC-Q200 qualified Grade 1 Click image above for interactive 3D content Open PDF in Adobe Reader for full functionality One world. One KEMET (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 1 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors 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 significant figures. Third digit specifies 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 - Millimeters 0.50.25 W t L Size Code L W tmax 0603 1.60.20 0.800.10 0.95 0805 1206 1210 1812 2220 2.00.25 3.20.30 3.20.30 4.70.40 5.70.50 1.250.20 1.600.20 2.500.25 3.200.30 5.000.40 0.80 0.85 0.85 1.25 1.25 (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 2 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Environmental Compliance RoHS 2 2011/65/EC, REACH Performance Characteristics Continuous Units Value DC Voltage Range (Vdc) V 3 to 170 AC Voltage Range (Vrms) V 2 to 130 Peak Single Pulse Surge Current, 8/20 s Waveform (Imax) A 30 to 1200 Single Pulse Surge Energy, 10/1000 s Waveform (Wmax) J 0.1 to 12.2 Operating Ambient Temperature C -55 to +150 Storage Temperature Range C -55 to +150 %/C < +0.05 ns <2 Steady State Applied Voltage Transient Threshold Voltage Temperature Coefficient Response Time Climatic Category 55/150/56 Qualifications Reliability Parameter AC/DC Bias Reliability Test AC/DC Life Test Pulse Current Capability Imax 8/20 s Pulse Energy Capability Wmax 10/1,000 s Tested According to Condition to be Satisfied after Testing CECC 42200, Test 4.20 or IEC 1051-1, Test 4.20. AEC-Q200 Test 8 - 1,000 hours at UCT |Vn (1 mA)| < 10 % CECC 42200, Test C 2.1 or IEC 1051-1, 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 CECC 42200, Test C 2.1 or IEC 1051-1, 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 Vjump Capability Vjump 5 min Increase of supply voltage to V Vjump for 1 minute (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com |Vn (1 mA)| < 15 % no visible damage |Vn (1 mA)| < 15 % no visible damage V0003_VE * 2/9/2017 3 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Qualifications cont'd Reliability Parameter Test Climatic Sequence Environmental and Storage Reliability Thermal Shock Steady State Damp Heat Storage Test Tested According to CECC 42200, Test 4.16 or IEC 1051-1, Test 4.17. a) Dry heat, 16 hours, UCT, Test Ba, IEC 68-2-2 b) Damp heat, cyclic, the first cycle: 55C, 93 % RH, 24 hours, Test Db 68-2-4 c) Cold, LCT, 2 hours Test Aa IEC 68-2-1 d) Damp heat cyclic, remaining 5 cycles: 55C, 93 % RH, 24 hour/cycle, Test Bd, IEC 68-2-30 |Vn (1 mA)| < 10 % CECC 42200, Test 4.12, Test Na, IEC 68-2-14, AEC-Q200 Test 16, 5 cycles UCT/LCT, 30 minutes |Vn (1 mA)| < 10 % no visible damage CECC 42200, Test 4.17, Test Ca, IEC 68-2-3, AEC-Q200 Test 6, 56 days, 40C, 93% RH. AEC-Q200 Test7: Bias, Rh, T all at 85. |Vn (1 mA)| < 10 % IEC 68-2-2, Test Ba, AEC-Q200 Test 3, 1,000 hours at maximum storage temperature |Vn (1 mA)| < 5 % CECC 42200, Test 4.10.1, Test Ta IEC 68-2-20 solder bath and reflow method Solderable at shipment and after 2 year of storage, criteria > 95% must be covered by solder for reflow meniscus Solderability Resistance to Soldering Heat CECC 42200, Test 4.10.2, Test Tb, IEC 68-2-20 solder bath and reflow method |Vn (1 mA)| < 5 % Terminal Strength JIS-C-6429, App. 1, 18N for 60 seconds - same for AEC-Q200 Test 22 no visual damage Board Flex JIS-C-6429, App. 2, 2 mm minimum AEC-Q200 test 21 - Board flex: 2 mm flex minimum |Vn (1 mA)| < 2 % no visible damage Vibration CECC 42200, Test 4.15, Test Fc, IEC 68-2-6, AEC- Q200 Test 14. Frequency range 10 to 55 Hz (AEC: 10 - 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 - half sine |Vn (1 mA)| < 10 % no visible damage Mechanical Shock CECC 42200, Test 4.14, Test Ea, IEC 68-2-27, AEC-Q200 Test 13. Acceleration = 490 m/s2 (AEC: MIL-STD-202-Method 213), Pulse duration = 11 ms, Waveshape - half sine; Number of shocks = 3x6 |Vn (1 mA)| < 10 % no visible damage ISO-7637-1 Pulses AEC-Q200 Test 30: Test pulses 1 to 3. Also other pulses - freestyle. |Vn (1 mA)| < 10 % no visible damage Mechanical Reliability Electrical Transient Conduction Condition to be Satisfied after Testing (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 4 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors 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: * Factor of Applied Voltage * Ambient 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. Vapl = applied voltage Vmax = maximum operating voltage Mean life (ML) FAV - Factor of Applied Voltage Vapl = Vmax Mean Life on Arrhenius model 108 h 107 Failure rate formula - calculation 109 = [fit] ML[h] Years 1,000 106 100 FAV 105 10 0,7 0,8 0,9 104 103 1 1,0 120 100 80 60 (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com 40 20 C Ta V0003_VE * 2/9/2017 5 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Table 1 - Ratings & Part Number Reference KEMET Part Number L (mm) W tmax Vn V V VDC 1 mA c (mm) (mm) rms Ic Wmax P 8/20 s 10/1000 s max (W) (A) (J) Imax Ctyp Ltyp 8/20 s at 1 kHz 100mA/ns (A) (pF) (nH) VE0603M300R002 1.6 0.20 0.80 0.10 0.95 2 3 4 12 1 0.1 0.003 30 360 VE0805M101R002 2.0 0.25 1.25 0.20 0.80 2 3 4 12 1 0.1 0.005 100 930 1.0 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 1.0 VE0603M300R004 1.6 0.20 0.80 0.10 0.95 4 5.5 8 16 1 0.1 0.003 30 295 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 0.010 400 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 3.0 VE2220K122R017 5.7 0.50 5.00 0.40 1.25 17 22 27 46 10 7.5 0.020 1200 7700 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 3.0 VE2220K122R020 5.7 0.50 5.00 0.40 1.45 20 26 33 56 10 8.0 0.020 1200 6500 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 tmax mm Vrms V Vdc V Vn 1 mA V Vc V KEMET Part Number L mm W mm Ic 8/20 s Wmax 10/1000 s Pmax A J W (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com Imax 8/20 s C typ @ 1 kHz Ltyp 100mA/ns A pF nH V0003_VE * 2/9/2017 6 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Table 1 - Ratings & Part Number Reference (cont'd) KEMET Part Number L (mm) W tmax Vn V V VDC 1 mA c (mm) (mm) rms Ic Wmax P 8/20 s 10/1000 s max (W) (A) (J) Imax Ctyp Ltyp 8/20 s at 1 kHz 100mA/ns (A) (pF) (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 0.015 400 440 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 tmax mm Vrms V Vdc V Vn 1 mA V Vc V KEMET Part Number L mm W mm Ic 8/20 s Wmax 10/1000 s Pmax A J W (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com Imax 8/20 s C typ @ 1 kHz Ltyp 100mA/ns A pF nH V0003_VE * 2/9/2017 7 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Soldering Popular soldering techniques used for surface mounted components are Wave and Infrared Reflow processes. Both processes can be performed with Pb-containing or Pb-free solders. The termination option available for these soldering techniques is Barrier Type End Terminations. End Termination Designation Ni Sn Barrier Type End Termination Ni R1 Recommended and Suitable for Component RoHS Compliant Pb-containing and Pb-free soldering Yes Wave Soldering - 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 first glued to the circuit board, usually with an epoxy adhesive. When all components on the PCB have 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 Reflow Soldering - these reflow processes are typically associated with top-side component placement. This technique utilizes a mixture of adhesive and solder compounds (and sometimes fluxes) that are blended into a paste. The paste is then screened onto PCB soldering pads specifically 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 reflow environment, where the paste is heated to slightly above its eutectic temperature. When the solder paste reflows, the SMD components are attached to the solder pads. Solder Fluxes - solder fluxes are generally applied to populated circuit boards to clean oxides forming during the heating process and to facilitate the flowing of the solder. Solder fluxes can be either a part of the solder paste compound or can be separate materials, usually fluids. Recommended fluxes are: * non-activated (R) fluxes, whenever possible * mildly activated (RMA) fluxes of class L3CN * class ORLO Activated (RA), water soluble or strong acidic fluxes with a chlorine content > 0.2 wt. % are NOT RECOMMENDED. The use of such fluxes could create high leakage current paths along the body of the varistor components. When a flux is applied prior to wave soldering, it is important to completely dry any residual flux solvents prior to the soldering process. Thermal Shock - 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 gradient greater than 4 C/sec., with an ideal gradient being 2 C/sec. Peak temperatures should be controlled. Wave and Reflow soldering conditions for SMD varistors with Pb-containing solders are shown in Fig. 1 and 2 respectively, while Wave and Reflow soldering conditions for SMD varistors with Pb-free solders are shown in Fig, 1 and 3 (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 8 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Soldering cont'd Whenever several different types of SMD components are being soldered, each having a specific soldering profile, the soldering profile with the least heat and the minimum amount of heating time is recommended. 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 - the inspection criteria to determine acceptable solder joints, when Wave or Infrared Reflow processes are used, will depend on several key variables, principally termination material process profiles. Pb-contining Wave and IR Reflow Soldering - 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 - Soldering Criterion in case of Wave and IR Reflow Pb-containing Soldering Pb-free Wave and IR Reflow Soldering - 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. (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 9 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Soldering cont'd Solder Test and Retained Samples - reflow soldering test based on J-STD-020D.1 and soldering test by dipping based on IEC 600682 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 specific lot can be checked at any time within this period should a customer require this information. Resistance to Flux Solderability Static leaching (Simulation of Reflow Soldering) 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 Soldering temperature (C) 2355 2355 2605 2355 Pb-FREE Solder Sn96/Cu0,4-0,8/3-4Ag Pb-FREE Soldering Temperature (C) 2505 2505 2805 2505 Soldering Time (s) 2 210 10 > 15 Burn-in Conditions VDCmax, 48 h Acceptance Criterion dVn < 5 %, idc 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 Test Dynamic Leaching (Simulation of Wave Soldering) Parameter Rework Criteria Soldering Iron - 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 specifications: Output Power: 30 Watts maximum Temperature of Soldering Iron Tip: 280C maximum Soldering Time: 10 Seconds maximum Storage Conditions - 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 always be stored in their original packaged unit. (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 10 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Soldering Pad Configuration M B W C A t B A L D Size L (mm) W (mm) h (mm) tmax (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 1210 1812 2220 180 4000 2500 2500 2000 180 1500 1500 1000 1000 180 1500 1500 1000 1000 Packaging Voltage Range (V) 2 to 14 17 20 to 40 50 to 130 Chip Size 0603 0805 1206 180 4000 3500 3500 180 4000 3500 3500 180 4000 2500 2500 2000 Reel Size (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 11 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Construction Detailed Cross Section Glass Passivation Termination (Ag/Pd, Ni/Sn) Glass Passivation ZnO Layer Inner Electrodes (Ag) Termination (Ag/Pd, Ni/Sn) Terminate Edge Inner Electrodes (Ag) Terminate Edge (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 12 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Taping & Reel Specifications Tape Size (mm) Ao Bo Ko Maximum B1 Maximum D1 Minimum E2 Minimum P1 F W T2 Maximum W1 W2 Maximum W3 A 8 mm 12 mm 0603 0805 1206 1210 1812 2220 1.2 1.9 1.1 4.35 0.3 6.25 4 3.5 8.0 3.5 8.4+1.5 14.4 7.9...10.9 180 1.6 2.4 1.1 4.35 0.3 6.25 4 3.5 8.0 3.5 8.4+1.5 14.4 7.9...10.9 180 1.9 3.75 1.8 4.35 0.3 6.25 4 3.5 8.0 3.5 8.4+1.5 14.4 7.9...10.9 180 2.9 3.7 2 4.35 0.3 6.25 4 3.5 8.0 3.5 8.4+1.5 14.4 7.9...10.9 180 3.75 5 2 8.2 1.5 10.25 8 5.5 12.0 6.5 12.4+2 18.4 11.9...15.4 180 5.6 6.25 2 8.2 1.5 10.25 8 5.5 12.0 6.5 12.4+2 18.4 11.9...15.4 180 (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 13 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors Terms and Definitions Term Rated AC Voltage Rated DC Voltage Supply Voltage Symbol Vrms Vdc V Leakage Current Idc Varistor Voltage Reference Current Clamping Voltage Protection Level Vn In Class Current Ic Voltage Clamping Ratio Vc/Vapp Jump Start Transient Vjump Rated Single Pulse Transient Energy Wmax Load Dump Transient WLD Rated Peak Single Pulse Transient Current Rated Transient Average Power Dissipation Capacitance Response Time Varistor Voltage Temperature Coefficient Insulation Resistance Isolation Voltage Operating Temperature Climatic Category Storage Temperature Vc Definition Maximum continuous sinusoidal AC voltage (<5% total harmonic distortion) which may be applied to the component under continuous operation conditions at 25C Maximum continuous DC voltage (<5% ripple) which may be applied to the component under continuous operating conditions at 25C The voltage by which the system is designated and to which certain operating characteristics of the system are referred; Vrms = 1,1 x V The current passing through the varistor at Vdc and at 25C or at any other specified temperature Voltage across the varistor measured at a given reference current In Reference current = 1 mA DC The peak voltage developed across the varistor under standard atmospheric conditions, when passing an 8/20 s class current pulse A peak value of current which is 1/10 of the maximum peak current for 100 pulses at two per minute for the 8/20 s pulse A figure of merit measure of the varistor clamping effectiveness as defined by the symbols Vc/Vapp, where (Vapp = Vrms or Vdc) 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 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 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 Imax Maximum peak current which may be applied for a single 8/20 s pulse, with, rated line voltage also applies, without causing device failure P Maximum average power which may be dissipated due to a group of pulses occurring within a specified isolated time period, without causing device failure at 25C C tr Capacitance between two terminals of the varistor measured at at 1 kHz The time lag between application of a surge and varistor's "turn-on" conduction action TC (Vn at 85C - Vn at 25C)/(Vn at 25C) x 60C) x 100 IR Minimum resistance between shorted terminals and varistor surface The maximum peak voltage which may be applied under continuous operating conditions between the varistor terminations and any conducting mounting surface The range of ambient temperature for which the varistor is designed to operate continuously as defined by the temperature limits of its climatic category UCT = Upper Category Temperature - the maximum ambient temperature for which a varistor has been designed to operate continuously, LCT = Lower Category Temperature - the minimum ambient temperature at which a varistor has been designed to operate continuously DHD = Dump Heat Test Duration Storage temperature range without voltage applied LCT/UCT/DHD (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 14 SMD Varistors VE Series - SMD 150C Low Voltage High Temperature Varistors KEMET Electronic Corporation Sales Offices For a complete list of our global sales offices, please visit www.kemet.com/sales. Disclaimer All product specifications, 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 Corporation's ("KEMET") knowledge of typical operating conditions for such applications, but are not intended to constitute - and KEMET specifically disclaims - any warranty concerning suitability for a specific 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 KEMET's 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 product-related 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. KEMET is a registered trademark of KEMET Electronics Corporation. (c) KEMET Electronics Corporation * P.O. Box 5928 * Greenville, SC 29606 * 864-963-6300 * www.kemet.com V0003_VE * 2/9/2017 15