schottky rectifier 2 amp 20CJQ045 www.irf.com 1 bulletin pd-20478 rev. f 01/03 major ratings and characteristics i f(av) rectangular 2.0 a waveform v rrm 45 v i fsm @ tp = 5 s sine 390 a v f @ 1 apk, t j = 125c 0.50 v (per leg) t j range - 55 to 150 c characteristics 20CJQ045 units description/features the 20CJQ045 surface mount schottky rectifier series has been designed for applications requiring very low forward drop and very small foot prints. typical applications are in portables, switching power supplies, converters, automotive system, free- wheeling diodes, battery charging, and reverse battery protection. small footprint, surface mountable low profile very low forward voltage drop high frequency operation guard ring for enhanced ruggedness and long term reliability common cathode conform to jedec outline sot-223 (to-261aa) dimensions in millimeters and (inches) 2 base common cathode 123 anode common cathode a node 12 sot-223
20CJQ045 2 bulletin pd-20478 rev. f 01/03 www.irf.com v fm max. forward voltage drop 0.54 v @ 1a (per leg) * see fig. 1 (1) 0.67 v @ 2a 0.50 v @ 1a 0.65 v @ 2a i rm max. reverse leakage current 0.1 ma t j = 25 c (per leg) * see fig. 2 (1) 10 ma t j = 125 c v f(to) threshold voltage 0.278 v t j = t j max. r t forward slope resistance 168.4 m ? c t typ. junction capacitance (per leg) 70 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance (per leg) 6 nh measured lead to lead 5mm from package body dv/dt max. voltage rate of change 7700 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 thja max. thermal resistance 65 c/w dc operation junction to ambient r thjl max. thermal resistance 25 c/w dc operation junction to lead wt approximate weight 0.13 (.0045) g (oz.) case style sot-223 thermal-mechanical specifications 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 values units conditions i f(av) max. average forward (per leg) 2 a 50% duty cycle @ t c = 126c, rectangular wave form current * see fig. 5(per device) 4 50% duty cycle @ t c = 102c, rectangular wave form i fsm max. peak one cycle non-repetitive 390 5s sine or 3s rect. pulse surge current (per leg) * see fig. 7 23 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 2 mj t j = 25 c, i as = 1 amps, l = 4 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 a part number 20CJQ045 v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 45 parameters values units conditions parameters values units conditions
20CJQ045 3 bulletin pd-20478 rev. f 01/03 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) 0.0001 0.001 0.01 0.1 1 10 100 0 5 10 15 20 25 30 35 40 45 r r 100c 75c 50c 25c reverse current - i (ma) reverse voltage - v (v) t = 150c 125c j 10 100 0 1020304050 r t junction capacitance - c (pf) reverse voltage - v (v) t = 25c j 0.1 1 10 100 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) notes: 1. duty factor d = t / t 2. peak t = p x z + t 1 2 j thjc c dm d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 2 t 1 t p dm 0.1 1 10 00.40.81.21.6 f fm t = 150c t = 125c t = 25c j j j forward voltage drop - v (v) instantaneous forward current - i (a)
20CJQ045 4 bulletin pd-20478 rev. f 01/03 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. 6 - forward power loss characteristics (per leg) (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 60 70 80 90 100 110 120 130 140 150 00.511.522.53 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 0.5 1 1.5 2 2.5 00.511.522.53 dc average power loss - (watts) f(av) rms limit d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 average forward current - i (a) 10 100 1000 10 100 1000 10000 fsm non-repetitive surge current - i (a) p at any rated load condition and with rated v applied following surge rrm square wave pulse duration - t (microsec) fig. 8 - unclamped inductive test circuit free-wheel diode 40hfl40s02 current monitor high-speed switch irfp460 l dut rg = 25 ohm vd = 25 volt +
20CJQ045 5 bulletin pd-20478 rev. f 01/03 www.irf.com marking information tape and reel information 4.10 (.161) 3.90 (.154) 1.85 (.072) 1.65 (.065) 2.05 (.080) 1.95 (.077) 12.10 (.475) 11.90 (.469) 7.10 (.279) 6.90 (.272) 1.60 (.062) 1.50 (.059) typ. 7.55 (.297) 7.45 (.294) 7.60 (.299) 7.40 (.292) 2.30 (.090) 2.10 (.083) 16.30 (.641) 15.70 (.619) 0.35 (.013) 0.25 (.010) feed direction tr 13.20 (.519) 12.80 (.504) 50.00 (1.969) min. 330.00 (13.000) max. notes : 1. controlling dimension: millimeter. 2. outline conforms to eia-481 & eia-541. 3. each o330.00 (13.00) reel contains 2,500 devices. 3 notes : 1. outline comforms to eia-418-1. 2. controlling dimension: millimeter.. 3. dimension measured @ hub. 4. includes flange distortion @ outer edge. 15.40 (.607) 11.90 (.469) 18.40 (.724) max. 14.40 (.566) 12.40 (.488) 4 4 ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7309 visit us at www.irf.com for sales contact information. 01/03 data and specifications subject to change without notice. this product has been designed and qualified for industrial level. qualification standards can be found on ir's web site.
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