i f(av) rectangular 200 a waveform v rrm range 80 to 100 v i fsm @ tp = 5 s sine 16,000 a v f @ 100apk, t j =125c 0.70 v (per leg) t j range - 55 to 175 c characteristics 203DMQ... units major ratings and characteristics the 203DMQ center tap schottky rectifier module series has been optimized for low reverse leakage at high temperature. the proprietary barrier technology allows for reliable operation up to 175 c junction temperature. typical applications are in high current switching power supplies, plating power supplies, ups systems, converters, free-wheeling diodes, welding, and reverse battery protection. 175 c t j operation center tap module high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance low forward voltage drop high frequency operation guard ring for enhanced ruggedness and long term reliability description/features modified jedec outline to-244ab isolated dimensions in millimeters and (inches) 200 amp 203DMQ... series bulletin pd-20579 04/00 schottky rectifier to-244ab isolated common cathode
203DMQ... series 2 bulletin pd-20579 04/00 www.irf.com v fm max. forward voltage drop 0.86 v @ 100a (per leg) * see fig. 1 (1) 1.03 v @ 200a 0.70 v @ 100a 0.84 v @ 200a i rm max. reverse leakage current 3 ma t j = 25 c (per leg) * see fig. 2 (1) 40 ma t j = 125 c v f(to) threshold voltage 0.50 v t j = t j max. r t forward slope resistance 1.08 m ? c t max. junction capacitance (per leg) 2,650 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance (per leg) 7.0 nh from top of terminal hole to mounting plane dv/dt max. voltage rate of change 10,000 v/ s (rated v r ) i f(av) max. average forward 200 a 50% duty cycle @ t c = 107 c, rectangular wave form current * see fig. 5 (per device) i fsm max. peak one cycle non-repetitive 16,000 5s sine or 3s rect. pulse surge current (per leg) * see fig. 7 2,100 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 15 mj t j = 25 c, i as = 1 amps, l = 30 mh (per leg) i ar repetitive avalanche current 1 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 part number 203DMQ080 203DMQ100 v r max. dc reverse voltage (v) 80 100 v rwm max. working peak reverse voltage (v) voltage ratings absolute maximum ratings following any rated load condition and with rated v rrm applied a parameters 203DMQ units conditions t j = 25 c t j = 125 c v r = rated v r electrical specifications (1) pulse width < 300s, duty cycle <2% parameters 203DMQ units conditions t j max. junction temperature range - 55 to 175 c t stg max. storage temperature range - 55 to 175 c r thjc max. thermal resistance junction 0.70 c/w dc operation * see fig. 4 to case (per leg) r thjc max. thermal resistance junction 0.35 c/w dc operation to case (per package) r thcs typical thermal resistance, case 0.10 c/w mounting surface , smooth and greased to heatsink wt approximate weight 79 (2.80) g (oz.) t mounting torque min. 40 (35) max. 58 (50) mounting torque center hole typ. 17 (15) terminal torque min. 58 (50) max. 86 (75) case style to - 244ab isolated modified jedec thermal-mechanical specifications kg-cm (ibf-in) parameters 203DMQ units conditions
203DMQ... series 3 bulletin pd-20579 04/00 www.irf.com 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) instantaneous forward current - i f (a) forward voltage drop - v fm (v) reverse current - i r (ma) reverse voltage - v r (v) junction capacitance - c t (p f) reverse voltage - v r (v) thermal impedance z thjc (c/w) t 1 , rectangular pulse duration (seconds) 100 1000 10000 0 20406080100 t = 25?c j 1 10 100 1000 0 0.2 0.4 0.6 0.8 1 1.2 1.4 t = 175 ? c t = 125 ? c t = 25 ? c j j j 0.001 0.01 0.1 1 10 100 1000 0 20406080100 125 ? c 75 ? c 50 ? c 25 ? c t = 175 ? c j 150 ? c 100 ? c 0.001 0.01 0.1 1 0.00001 0.0001 0.001 0.01 0.1 1 10 100 single pulse (thermal resistance) d = 0.75 d = 0.50 d = 0.33 d = 0.25 notes: 1. duty factor d = t1/ t2 2. peak tj = pdm x zthjc + tc d = 0.20 2 t 1 t p dm
203DMQ... series 4 bulletin pd-20579 04/00 www.irf.com 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) fr ee-w heel d io d e 40hfl40s02 c urrent monitor hig h-speed sw itc h irfp460 l dut rg = 25 ohm vd = 25 volt + (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 allowable case temperature ( c) average forward current - i f(av) (a) average power loss (watts) average forward current - i f(av) (a) non-repetitive surge current - i fsm (a) square wave pulse duration - t p (microsec) 0 50 100 150 200 250 0 50 100 150 200 250 300 dc rms limit d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 1000 10000 100000 10 100 1000 10000 at any rated load condition and with rated vrrm applied following surge 80 100 120 140 160 180 0 50 100 150 200 250 300 dc 80% square wave (d = 0.50) see note (2)
203DMQ... series 5 bulletin pd-20579 04/00 www.irf.com 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.
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