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schottky rectifier 40 amp pd-20542 rev. b 11/99 1 www.irf.com this center tap schottky rectifier series has been optimized for low reverse leakage at high temperature. the proprietary barrier technology allows for reliable operation up to 175c junction temperature. typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175 c t j operation center tap configuration low forward voltage drop high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance high frequency operation guard ring for enhanced ruggedness and long term reliability description/features case styles 43ctq... 43ctq...s 43ctq...-1 to-220 d 2 pak to-262 43ctq... 43ctq...s 43ctq...-1 major ratings and characteristics i f(av) rectangular 40 a waveform v rrm 80 / 100 v i fsm @ tp = 5 s sine 850 a v f @ 20 apk, t j = 125c 0.67 v (per leg) t j range - 55 to 175 c characteristics values units
43ctq..., 43ctq...s, 43ctq...-1 2 pd-20542 rev. b 11/99 www.irf.com 43CTQ080 43ctq100 43CTQ080s 43ctq100s 43CTQ080-1 43ctq100-1 v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) 80 100 voltage ratings parameters absolute maximum ratings following any rated load condition and with rated v rrm applied parameters values units conditions i f(av) max. average forward (per leg) 20 a 50% duty cycle @ t c = 135c, rectangular wave form current * see fig. 5 (per device) 40 i fsm max. peak one cycle non-repetitive 850 5s sine or 3s rect. pulse surge current (per leg) * see fig. 7 275 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 7.50 mj t j = 25 c, i as = 0.50 amps, l = 60 mh (per leg) i ar repetitive avalanche current 0.50 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 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 2.0 c/w dc operation to case (per leg) 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 (only for to-220) wt approximate weight 2 (0.07) g (oz.) t mounting torque min. 6 (5) max. 12 (10) thermal-mechanical specifications kg-cm (ibf-in) parameters values units conditions v fm max. forward voltage drop 0.81 v @ 20a (per leg) * see fig. 1 (1) 0.98 v @ 40a 0.67 v @ 20a 0.81 v @ 40a i rm max. reverse leakage current 1 ma t j = 25 c (per leg) * see fig. 2 (1) 11 ma t j = 125 c v f(to) threshold voltage 0.71 v t j = t j max. r t forward slope resistance 0.43 m ? c t max. junction capacitance (per leg) 1480 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 = 25 c t j = 125 c electrical specifications (1) pulse width < 300s, duty cycle <2% v r = rated v r parameters values units conditions
3 pd-20542 rev. b 11/99 www.irf.com 43ctq..., 43ctq...s, 43ctq...-1 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)
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43ctq..., 43ctq...s, 43ctq...-1 4 pd-20542 rev. b 11/99 www.irf.com fig. 8 - unclamped inductive test circuit **+,**- .$/.* 78) 0* 1 '/1$/ ,$2,3)**. 3+$, %' - .0 %! *+ 4
6 (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 = 10 v fig. 7 - max. non-repetitive surge current (per leg) fig. 5 - max. allowable case temperature vs. average forward current (per leg) fig. 6 - forward power loss characteristics (per leg)

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5 pd-20542 rev. b 11/99 www.irf.com 43ctq..., 43ctq...s, 43ctq...-1 3.78 (0.15) 3.54 (0.14) 10.54 (0.41) max. dia. 15.24 (0.60) 14.84 (0.58) 2.92 (0.11) 2.54 (0.10) 1 term 2 14.09 (0.55) 13.47 (0.53) 3.96 (0.16) 3.55 (0.14) 0.94 (0.04) 0.69 (0.03) 4.57 (0.18) 4.32 (0.17) 3 0.61 (0.02) max. 5.08 (0.20) ref. 1.32 (0.05) 1.22 (0.05) 6.48 (0.25) 6.23 (0.24) 2 0.10 (0.004) 1.40 (0.05) 1.15 (0.04) 2.89 (0.11) 2.64 (0.10) 1 3 2.04 (0.080) max. 2 2 dimensions in millimeters and (inches) conform to jedec outline to-220ab 2 base comm on ca th ode 12 3 anode comm on ca th ode anode 12 ordering infor mation table device code 1 5 24 3 1 - essential part number 2 - c = common cathode 3 - t = to-220 4 - q = schottky q series 5 - voltage rating 6 - 1 = to-262 s= d 2 pak 43 c t q 100 -1 6 outline table 080 = 80v 100 = 100v
43ctq..., 43ctq...s, 43ctq...-1 6 pd-20542 rev. b 11/99 www.irf.com tr r feed dir ection tr l feed direction 10 .90 (0.429) 10 .70 (0.421) 16 .10 (0.6 34) 15 .90 (0.6 26) 1.75 (0.06 9) 1.25 (0.04 9) 1.85 (0 .07 3) 1.65 (0 .06 5) 4.10 (0.161) 3.90 (0.153) 1.60 (0.063) 1.50 (0.059) dia. 1.60 (0.063) 1.50 (0.059) dia. 11 .60 (0.457) 11 .40 (0.449) 15.42 (0.6 09) 15.22 (0.6 01) 4.72 (0.18 6) 4.52 (0.17 8) 24 .30 (0 .957) 23 .90 (0 .941) 0.368 (0.014 5) 0.342 (0.013 5) 360 (1 4.173) dia. max. 26.40 (1.0 39) 24.40 (0.9 61) 13.50 (0.5 32) 12.80 (0.5 04) dia. 60 (2.36 2) dia. min . smd-220 tape & reel when ordering, indicate th e part number, part orientation, and the quantity. qu antitie s are in multiples of 800 p iece s per reel fo r bo th trl and tr r. 10.16 (0.40) ref . 8.89 (0.35) 4.57 (0.18) 4.32 (0.17) 0.61 (0.02) m ax . 5.08 (0.20) r ef. 1.32 (0.05) 1.22 (0.05) 13 6.47 (0.25) 6.18 (0.24) 93 re f. 2.61 (0.10) 2.32 (0.09) 5.2 8 (0 .2 1) 4.7 8 (0 .1 9) 4.6 9 (0 .1 8) 4.20 (0.16) 0.55 (0.02) 0.46 (0.02) 14.73 (0.58) 15.49 (0.61) 1.4 0 (0 .0 55 ) 1.1 4 (0 .0 45 ) 3x 0.93 (0.37) 0.69 (0.27) 2x 11.43 (0.45) 17.78 (0.70) 8.89 (0.35) 3.81 (0.15) 2.08 (0.08) 2x 2.54 (0.10) 2x minimum recommended footprint 2 dimensions in millimeters and (inches) tape & reel information outline table dimensions in millimeters and (inches) conform to jedec outline d 2 pak (smd-220) 2 base comm on ca th ode 12 3 anode comm on ca th ode anode 12
7 pd-20542 rev. b 11/99 www.irf.com 43ctq..., 43ctq...s, 43ctq...-1 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. outline table dimensions in millimeters and (inches) modified jedec outline to-262 2 base comm on cat h od e 123 anode comm on cat h od e anode 12

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