SMD Varistors MLV Automotive Series Construction Multilayer technology Termination: nickel barrier (CT series) or silver palladium (CN series) No plastic or epoxy encapsulation assures better than UL 94 V-0 flammability rating Features Sizes 0603 2220 High energy absorption, particularly in case of load dump Stable protection level, low leakage current High resistance to cyclic temperature stress Wide range of operating temperature Low inductance (suitable for ESD protection) PSpice models Bidirectional clamping Taping Supply on 8/12-mm tape, for tape dimensions see pages 154/155, for reel dimensions and packing units see page 157, chapter SMD Varistors: Taping Type designation Detailed description of coding system on page 39, chapter General Technical Information SIOV-CT 1210 S 14 B AUTO G EPCOS metal oxide varistor Taping mode Design Automotive varistor Size (nominal) Specifies special tolerance (B) Special tolerance Max. AC operating voltage of varistor voltage General technical data Climatic category 55/125/56 in accordance with IEC 60068-1 LCT 55 C UCT + 125 C Damp heat, steady state 56 days in accordance with IEC 60068-2-3 (93 % r.h., 40 C) Operating temperature 55 + 125 C in accordance with CECC 42 000 1) Storage temperature 55 + 150 C Response time < 0,5 ns Solderability 235 C, 2 s in accordance with IEC 60068-2-58 Resistance to soldering heat 260 C, 10 s in accordance with IEC 60068-2-58 1) For mounted parts (storage conditions for unused parts on reel see page 38, chapter General Technical Information) 135 04/02SMD Varistors Automotive Nickel Barrier Termination (available upon request) Maximum ratings (T = 125 C) A Type Ordering code V V i W P W RMS DC max max max LD 8/20 s (2 ms) (10x) SIOV- V V A J W J 12-V supply systems CT0603S14BAUTOG B72500T1140S260 14 16 30 0,2 0,003 CT0805S14BAUTOG B72510T1140S262 14 16 120 0,3 0,008 1,0 CT1206S14BAUTOG B72520T1140S262 14 16 200 0,6 0,008 1,5 CT1210S14BAUTOG B72530T1140S262 14 16 400 1,6 0,010 3,0 CT1812S14BAUTOG B72580T1140S262 14 16 800 2,4 0,015 6,0 CT2220S14BAUTOG B72540T1140S262 14 16 1200 5,8 0,030 12,0 CT2220S14BAUTOE2G2 B72540T3140S272 14 16 1200 5,8 0,030 25,0 24-V supply systems CT2220K25AUTOE2G2 B72540T3250K072 25 31 1200 9,6 0,030 25,0 CT2220K30AUTOG B72540T1300K062 30 34 1200 12,0 0,030 12,0 CT2220K30AUTOE2G2 B72540T3300K072 30 34 1200 12,0 0,030 25,0 Characteristics (T = 25 C) A Type V V V Max. clamping C L Der. V/I Jump v v typ typ (5 min) (1 mA) (1 mA) voltage (1 kHz) curve char. v i SIOV- V V % V A nF nH Page Page 12-V supply systems CT0603S14BAUTOG 24,5 22 +23/0 42 1,0 0,12 1,0 238 272 CT0805S14BAUTOG 24,5 22 +23/0 42 1,0 0,4 1,5 239 272 CT1206S14BAUTOG 24,5 22 +23/0 40 1,0 0,8 1,8 240 272 CT1210S14BAUTOG 24,5 22 +23/0 40 2,5 1,7 1,8 242 272 CT1812S14BAUTOG 24,5 22 +23/0 40 5,0 5,6 2,5 244 272 CT2220S14BAUTOG 24,5 22 +23/0 40 10,0 9,5 3,0 245 272 CT2220S14BAUTOE2G2 24,5 22 +23/0 40 10,0 15,0 3,0 245 272 24-V supply systems CT2220K25AUTOE2G2 40,0 39 10 65 10,0 10,0 3,0 245 271 CT2220K30AUTOG 45,0 47 10 77 10,0 4,0 3,0 245 271 CT2220K30AUTOE2G2 45,0 47 10 77 10,0 10,0 3,0 245 271 Notes If the maximum loads specified for load dump and jump start are fully utilized, subsequent polarity reversal of the AUTO varistors is inadmissible. If the load remains under the maximum ratings, polarity reversal may be admissible. Contact EPCOS for consultancy on this kind of problem. Load dump or jump start can decrease the varistor voltage in load direction by max. 15 %. Load dump: min. time of energy input 40 ms, interval 60 s. (The load dump time constant t differs from the time constant of the energy input) d 136 04/02