schottky rectifier 8a, 45v 8CLJQ045 major ratings and characteristics description/features 03/01/02 case style www.irf.com 1 characteristics 8CLJQ045 units i f(av) rectangular 8 a waveform v rrm (per leg) 45 v i fsm @ tp = 8.3ms half-sine 80 a (per leg) v f @ 4apk, t j =125c 0.58 v (per leg) t j , t stg operating and storage -55 to 150 c anode common anode cathode 1 23 high efficiency series ir case style smd-0.5 pd -91887b the 8CLJQ045 center tap schottky rectifier has been expressly designed to meet the rigorous requirements of hi-rel environments. it is packaged in the hermetic surface mount smd-0.5 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 (isolated base)
8CLJQ045 2 www.irf.com part number 8CLJQ045 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 8.5 a 50% duty cycle @ t c = 100 c, rectangular waveform see fig. 5 i fsm max. peak one cycle non - repetitive 80 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 3.73 c/w dc operation see fig. 4 to case (per leg) r thjc max. thermal resistance, junction 1.86 c/w dc operation to case (per package) wt weight (typical) 1.0 g die size 60x60 mils case style smd-0.5 thermal-mechanical specifications parameters limits units conditions v fm max. forward voltage drop 0.67 v @ 4a (per leg) see fig. 1 0.96 v @ 8a 0.58 v @ 4a 0.92 v @ 8a i rm max. reverse leakage current 0.15 ma t j = 25 cv r = rated v r (per leg) see fig. 2 43 ma t j = 125 c c t max. junction capacitance (per leg) 760 pf v r = 5v dc ( 1mhz, 25 c ) l s typical series inductance (per leg) 4.8 nh measured from center of cathode pad to center of anode pad electrical specifications t j = 25 c t j =1 25 c
8CLJQ045 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) 1 10 100 0.0 0.5 1.0 1.5 2.0 fm f instantaneous forward current - i (a) forward voltage drop - v (v) t = 150 c t = 125 c t = 25 c t = -55 c j j j j 0.001 0.01 0.1 1 10 100 01020304050 r r 100 c 75 c 50 c 25 c reverse volta g e - v ( v ) rev erse c urrent - i (m a) 125 c j a t = 150 c 100 1000 0 1020 304050 t = 25 c j reverse volta g e - v ( v ) r t junction capacitance - c (pf) a
8CLJQ045 4 www.irf.com fig. 5 - max. allowable case temperature vs. average forward current fig. 4 - max. thermal impedance z thjc characteristics (per leg) ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7903 visit us at www.irf.com for sales contact information . data and specifications subject to change without notice. 03/02 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 notes: 1. duty factor d = t / t 2. peak t = p x z + t 1 2 j dm thjc c p t t dm 1 2 t , rectan g ular pulse duration (sec) thermal response (z ) 1 thjc 0.01 0.02 0.05 0.10 0.20 d = 0.50 single pulse (thermal response) 0 20 40 60 80 100 120 140 160 180 024681012 dc allow able case tem perature - ( c) f(av) a avera g e f orw ard c urrent - i (a ) thjc 8CLJQ045 r (d c ) = 3.73 c/w 8clq045 r thjc (dc) = 1.86 c/w
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