schottky rectifier 35a, 45v 35clq045 major ratings and characteristics description / features case style www.irf.com 1 characteristics 35clq045 units
v rrm (per leg) 45 v i fsm @ tp = 8.3ms half-sine 300 a (per leg) v f @ 20apk, t j = 125c 0.57 v (per leg) t j , t stg operating and storage -55 to 150 c high efficiency series the 35clq045 center tap schottky rectifier has been expressly designed to meet the rigorous requirements of hirel environments. it is packaged in the hermetic surface mount smd-1 ceramic package. the device's forward voltage drop and reverse leakage current are optimized for the lowest power loss and the highest circuit efficiency for typical high frequency switching power supplies and resonent power converters. full mil-prf-19500 quality conformance testing is available on source controlled drawings to tx, txv and s levels. ? hermetically sealed ? center tap ? low forward voltage drop ? high frequency operation ? guard ring for enhanced ruggedness and long term reliability ? surface mount ? lightweight case outline and dimensions - smd-1
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pd-20503d
35clq045 2 www.irf.com part number 35clq045 v r max. dc reverse voltage (v) (per leg) v rwm max. working peak reverse voltage (v) (per leg) voltage ratings 45 parameters limits units conditions i f(av) max. average forward current 35 a 50% duty cycle @ t c = 80c, rectangular waveform see fig. 5 i fsm max. peak one cycle non - repetitive 300 a @ t p = 8.3 ms half-sine surge current (per leg) absolute maximum ratings pulse width < 300s, duty cycle < 2% parameters limits units conditions t j max.junction temperature range -55 to 150 c t stg max. storage temperature range -55 to 150 c r thjc max. thermal resistance, junction 1.4 c/w dc operation see fig. 4 to case (per leg) r thjc max. thermal resistance, junction 0.7 c/w dc operation to case (per package) wt weight (typical) 2.6 g die size 150x150 mils case style smd-1 thermal-mechanical specifications parameters limits units conditions v fm max. forward voltage drop 0.73 v @ 20a (per leg) see fig. 1 0.83 v @ 35a 0.63 v @ 20a 0.75 v @ 35a i rm max. reverse leakage current 0.5 ma t j = 25c v r = rated v r (per leg) see fig. 2 20 ma t j = 125c electrical specifications t j = -55c t j = 25c l s typical series inductance (per leg) 2.8 nh measured from center of cathode pad to center of anode pad c t max. junction capacitance (per leg) 1400 pf v r = 5v dc ( 1mhz, 25c ) 0.57 v @ 20a 0.71 v @ 35a t j = 125c
35clq045 www.irf.com 3 fig. 2 - typical values of reverse current vs. reverse voltage (per leg) fig. 3 - typical junction capacitance vs. reverse voltage (per leg) fig. 1 - max. forward voltage drop characteristics (per leg) 0.0001 0.001 0.01 0.1 1 10 100 0 1020304050 a 25c 100c 125c t = 150c j 100 1000 10000 0 1020304050 t = 25c j reverse voltage - v (v) r a 0.0 0.2 0.4 0.6 0.8 1.0 1.2 forward voltage drop - v f (v) 0.1 1 10 100 i n s t a n t a n e o u s f o r w a r d c u r r e n t - i f ( a ) tj = -55c tj = 125c tj = 25c
35clq045 4 www.irf.com fig. 5 - max. allowable case temperature vs. average forward current (per package) fig. 4 - max. thermal impedance z thjc characteristics (per leg) 1e-005 0.0001 0.001 0.01 0.1 1 t 1 , rectangular pulse duration (sec) 0.001 0.01 0.1 1 10 t h e r m a l r e s p o n s e ( z t h j c ) 0.20 0.10 d = 0.50 0.02 0.01 0.05 single pulse ( thermal response ) notes: 1. duty factor d = t1/t2 2. peak tj = p dm x zthjc + tc p t t dm 1 2 0 1020304050607080 average forward current - i f(av) (a) 0 20 40 60 80 100 120 140 160 a l l o w a b l e c a s e t e m p e r a t u r e - ( c ) r thjc (dc) = 0.7c/w square wave (d=0.50) 80% rated v r applied dc ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 ir leominster : 205 crawford st., leominster, massachusetts 01453, usa tel: (978) 534-5776 tac fax: (310) 252-7903 visit us at www.irf.com for sales contact information . data and specifications subject to change without notice. 09/2012
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