schottky rectifier 40 amp 42CTQ030L preliminary data sheet pd-20573 11/98 1 www.irf.com i f(av) rectangular 40 a waveform v rrm 30 v i fsm @ tp = 5 s sine 1100 a v f @ 20 apk, t j = 125c 0.38 v (per leg) t j range - 55 to 150 c characteristics 42ctq...l units major ratings and characteristics description/features the 42CTQ030L center tap schottky rectifier has been opti- mized for very low forward voltage drop, with moderate leakage. the proprietary barrier technology allows for reliable operation up to 150 c junction temperature. typical applica- tions are in switching power supplies, converters, free-wheel- ing diodes, and reverse battery protection. 150 c t j operation center tap to-262 package high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance very low forward voltage drop high frequency operation guard ring for enhanced ruggedness and long term reliability to-262 2 base comm on cathode 12 3 anode comm on cathode anode 12 modified jedec outline to-262 dimensions in millimeters and inches
42CTQ030L www.irf.com preliminary data sheet pd-20573 11/98 2 part number 42CTQ030L v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 30 v fm max. forward voltage drop 0.48 v @ 20a (per leg) * see fig. 1 (1) 0.57 v @ 40a 0.38 v @ 20a 0.51 v @ 40a i rm max. reverse leakage current 3 ma t j = 25 c (per leg) * see fig. 2 (1) 183 ma t j = 125 c v f(to) threshold voltage 0.22 v t j = t j max. r t forward slope resistance 6.76 m w c t max. junction capacitance (per leg) 2840 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance (per leg) 8.0 nh measured lead to lead 5mm from package body dv/dt max. voltage rate of change 10,000 v/ s (rated v r ) 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 2.0 c/w dc operation to case (per leg) * see fig. 4 r thjc max. thermal resistance junction 1.0 c/w dc operation to case (per package) r thcs typical thermal resistance, case 0.50 c/w mounting surface , smooth and greased to heatsink wt approximate weight 2 (0.07) g (oz.) t mounting torque min. 6 (5) max. 12 (10) case style to-262 modified jedec thermal-mechanical specifications kg-cm (ibf-in) t j = 25 c t j = 125 c electrical specifications (1) pulse width < 300s, duty cycle <2% v r = rated v r absolute maximum ratings following any rated load condition and with rated v rrm applied parameters 42ctq..l units conditions i f(av) max. average forward (per leg) 20 a 50% duty cycle @ t c = 121c, rectangular wave form current * see fig. 5 (per device) 40 i fsm max. peak one cycle non-repetitive 1100 5s sine or 3s rect. pulse surge current (per leg) * see fig. 7 360 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 13 mj t j = 25 c, i as = 3 amps, l = 2.90 mh (per leg) i ar repetitive avalanche current 3 a current decaying linearly to zero in 1 sec (per leg) frequency limited by t j max. v a = 1.5 x v r typical a parameters 42ctq..l units conditions parameters 42ctq..l units conditions
42CTQ030L preliminary data sheet pd-20573 11/98 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. 4 - max. thermal impedance z thjc characteristics (per leg) fig. 1 - max. forward voltage drop characteristics (per leg) 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 10 100 thjc t , rectangular pulse duration (seconds) single pulse (thermal resistance) 1 thermal impedance z ( c/w) d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 notes: 1. duty factor d = t / t 2. peak t = p x z + t j dm 1 2 thjc c 2 t 1 t p dm 1 10 100 1000 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 instantaneous forward current - i (a) t = 150 c t = 125c t = 25c j j j f fm forward voltage drop - v (v) 0.01 0.1 1 10 100 1000 0 5 10 15 20 25 30 r r 125 c 100c 75c 50c 25c reverse voltage - v (v) reverse current - i (ma) t = 150c j 100 1000 10000 0 5 10 15 20 25 30 35 t = 25 c j r t reverse voltage - v (v) junction capacitance - c (pf)
42CTQ030L www.irf.com preliminary data sheet pd-20573 11/98 4 fig. 7 - max. non-repetitive surge current (per leg) fig. 5 - max. allowable case temperature vs. average forward current (per leg) fig. 8 - unclamped inductive test circuit fig. 6 - forward power loss characteristics (per leg) free-wheel diode 40hfl40s02 current monitor high-speed switch irfp460 l dut rg = 25 ohm vd = 25 volt + 100 110 120 130 140 150 0 5 10 15 20 25 30 dc allowable case temperature - ( c) f(av) see note (2) square wave (d = 0.50) 80% rated v applied r average forward current - i (a) 0 4 8 12 16 0 5 10 15 20 25 30 dc average power loss - (watts) f( av ) rms limit average forward current - i (a) d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 100 1000 10 100 1000 1000 0 fsm non-repetitive surge current - i (a) at any rated load condition and with rated v applied following surge rrm p square wave pulse duration - t (microsec) (2) formula used: t c = t j - (pd + pd rev ) x r thjc ; pd = forward power loss = i f(av) x v fm @ (i f(av) / d) (see fig. 6); pd rev = inverse power loss = v r1 x i r (1 - d); i r @ v r1 = 80% rated v r
42CTQ030L preliminary data sheet pd-20573 11/98 www.irf.com 5 world headquarters: 233 kansas st., el segundo, california 90245 u.s.a. tel: (310) 322 3331. fax: (310) 322 3332. european headquarters: hurst green, oxted, surrey rh8 9bb, u.k. tel: ++ 44 1883 732020. fax: ++ 44 1883 733408. ir canada: 15 lincoln court, brampton, markham, ontario l6t3z2. tel: (905) 453 2200. fax: (905) 475 8801. ir germany: saalburgstrasse 157, 61350 bad homburg. tel: ++ 49 6172 96590. fax: ++ 49 6172 965933. ir italy: via liguria 49, 10071 borgaro, torino. tel: ++ 39 11 4510111. fax: ++ 39 11 4510220. ir far east: k&h bldg., 2f, 30-4 nishi-ikebukuro 3-chome, toshima-ku, tokyo, japan 171. tel: 81 3 3983 0086. ir southeast asia: 1 kim seng promenade, great world city west tower,13-11, singapore 237994. tel: ++ 65 838 4630. ir taiwan: 16 fl. suite d.207, sec. 2, tun haw south road, taipei, 10673, taiwan. tel: 886 2 2377 9936. http://www.irf.com fax-on-demand: +44 1883 733420 data and specifications subject to change without noti ce.
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