135 04/02 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 ? 1) for mounted parts (storage conditions for unused parts on reel see page 38, chapter ? general technical information ? ) general technical data climatic category lct uct damp heat, steady state (93 % r.h., 40 c) 55/125/56 55 c + 125 c 56 days in accordance with iec 60068-1 in accordance with iec 60068-2-3 operating temperature 55 + 125 c in accordance with cecc 42 000 storage temperature 1) 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 siov-ct 1210 s 14 b auto g epcos metal oxide varistor design size (nominal) taping mode automotive varistor specifies special tolerance (b) special tolerance of varistor voltage max. ac operating voltage smd varistors mlv; automotive series
136 04/02 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 d differs from the time constant of the energy input) maximum ratings ( t a = 125 c) type siov- ordering code v rms v v dc v i max 8/20 s a w max (2 ms) j p max w w ld (10x) 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 a = 25 c) type siov- v jump (5 min) v v v (1 ma) v v v (1 ma) % max. clamping voltage c typ (1 khz) nf l typ nh der. curve page v / i char. page v v i a 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 automotive ? nickel barrier termination (available upon request) smd varistors
137 04/02 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 d differs from the time constant of the energy input) maximum ratings ( t a = 125 c) type siov- ordering code v rms v v dc v i max 8/20 s a w max (2 ms) j p max w w ld (10x) j 12-v supply systems cn0603s14bautog b72500v1140s260 14 16 30 0,2 0,003 cn0805s14bautog b72510v1140s262 14 16 120 0,3 0,008 1,0 cn1206s14bautog b72520v1140s262 14 16 200 0,6 0,008 1,5 cn1210s14bautog b72530v1140s262 14 16 400 1,6 0,010 3,0 cn1812s14bautog b72580v1140s262 14 16 800 2,4 0,015 6,0 cn2220s14bautog b72540v1140s262 14 16 1200 5,8 0,030 12,0 cn2220s14bautoe2g2 b72540v3140s272 14 16 1200 5,8 0,030 25,0 24-v supply systems cn2220k25autoe2g2 b72540v3250k072 25 31 1200 9,6 0,030 25,0 cn2220k30autog b72540v1300k062 30 34 1200 12,0 0,030 12,0 cn2220k30autoe2g2 b72540v3300k072 30 34 1200 12,0 0,030 25,0 characteristics ( t a = 25 c) type siov- v jump (5 min) v v v (1 ma) v v v (1 ma) % max. clamping voltage c typ (1 khz) nf l typ nh der. curve page v / i char. page v v i a 12-v supply systems cn0603s14bautog 24,5 22 +23/ 0 42 1,0 0,12 1,0 238 272 cn0805s14bautog 24,5 22 +23/ 0 42 1,0 0,4 1,5 239 272 cn1206s14bautog 24,5 22 +23/ 0 40 1,0 0,8 1,8 240 272 cn1210s14bautog 24,5 22 +23/ 0 40 2,5 1,7 1,8 242 272 cn1812s14bautog 24,5 22 +23/ 0 40 5,0 5,6 2,5 244 272 cn2220s14bautog 24,5 22 +23/ 0 40 10,0 9,5 3,0 245 272 cn2220s14bautoe2g2 24,5 22 +23/ 0 40 10,0 15,0 3,0 245 272 24-v supply systems cn2220k25autoe2g2 40,0 39 10 65 10,0 10,0 3,0 245 271 cn2220k30autog 45,0 47 10 77 10,0 4,0 3,0 245 271 cn2220k30autoe2g2 45,0 47 10 77 10,0 10,0 3,0 245 271 automotive ? silver palladium termination smd varistors
138 04/02 mlv; automotive series smd varistors dimensions termination: nickel barrier (ct) or silver palladium (cn) type i mm b mm h mm k mm siov-ct/cn0603 1,6 0,15 0,80 0,10 0,9 max. 0,1 0,4 siov-ct/cn0805 2,0 0,20 1,25 0,15 1,4 max. 0,13 0,75 siov-ct/cn1206 3,2 0,30 1,60 0,20 1,7 max. 0,25 0,75 siov-ct/cn1210 3,2 0,30 2,50 0,25 1,7 max. 0,25 0,75 siov-ct/cn1812 4,5 0,40 3,20 0,30 2,5 max. 0,25 1,0 siov-ct/cn2220 5,7 0,40 5,00 0,40 2,5 max. 0,25 1,0 recommended solder pad layout type a mm b mm c mm d mm siov-ct/cn0603 1,0 1,0 1,0 3,0 siov-ct/cn0805 1,4 1,2 1,0 3,4 siov-ct/cn1206 1,8 1,2 2,1 4,5 siov-ct/cn1210 2,8 1,2 2,1 4,5 siov-ct/cn1812 3,6 1,5 3,0 6,0 siov-ct/cn2220 5,5 1,5 4,2 7,2 var0406-m b h k weight: < 0,2 g termination acc. cecc 32101-801 var0391-d b b c d a a
herausgegeben von epcos ag unternehmenskommunikation, postfach 80 17 09, 81617 mnchen, deutschland ++49 89 636 09, fax (0 89) 636-2 26 89 ? epcos ag 2002. vervielf?ltigung, ver?ffentlichung, verbreitung und verwertung dieser broschre und ihres inhalts ohne aus- drckliche genehmigung der epcos ag nicht gestattet. bestellungen unterliegen den vom zvei empfohlenen allgemeinen lieferbedingungen fr erzeugnisse und leistungen der elek- troindustrie, soweit nichts anderes vereinbart wird. diese broschre ersetzt die vorige ausgabe. fragen ber technik, preise und lieferm?glichkeiten rich ten sie bitte an den ihnen n?chstgelegenen vertrieb der epcos ag oder an unsere vertriebsgesellschaften im ausland. bauelemente k?nnen aufgrund technischer erfordernisse gefahrstoffe ent- halten. ausknfte darber bitten wir unter angabe des betreffenden typs ebenfalls ber die zust?ndige vertriebsgesellschaft ein - zuholen. published by epcos ag corporate communications, p.o. box 80 17 09, 81617 munich, germany ++49 89 636 09, fax (0 89) 636-2 26 89 ? epcos ag 2002. reproduction, publication and dissemination of this brochure and the information contained therein without epcos? prior express consent is prohibited. purchase orders are subject to the general conditions for the s upply of products and services of the electrical and electronics industry recommended by the zvei (german electrical and el ectronic manufacturers? associ ation), unless otherwise agreed. this brochure replaces the previous edition. for questions on technology, prices and delivery please contact the sales offices of epcos ag or the international representa- tives. due to technical requirements components may contain dangerous substances. for information on the type in question please also contact one of our sales offices.
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