schottky rectifier 20 amp 20ctq...spbf 20ctq... -1pbf bulletin pd-21029 rev. a 06/06 major ratings and characteristics i f(av) rectangular 20 a waveform v rrm range 35 / 45 v i fsm @ tp = 5 s sine 1060 a v f @ 10 apk, t j = 125c 0.57 v (per leg) t j range - 55 to 175 c characteristics values units description/ features the 20ctq.. 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 175 c junction temperature. typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175 c t j operation center tap to-220 package 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 lead-free ("pbf" suffix) i f(av) = 20amp v r = 35/ 45v case styles d 2 pak 20ctq...spbf 20ctq...-1pbf to-262 anode 1 3 2 base common cathode 2 a node common cathode anode 1 3 2 base common cathode 2 a node common cathode www.vishay.com 1 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 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 3.25 c/w dc operation * see fig. 4 to case (per leg) r thjc max. thermal resistance junction 1.63 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) marking device 20ctq...s case style d 2 pak 20ctq...-1 case style to-262 thermal-mechanical specifications kg-cm (ibf-in) v fm max. forward voltage drop 0.64 v @ 10a (per leg) * see fig. 1 (1) 0.76 v @ 20a 0.57 v @ 10a 0.68 v @ 20a i rm max. reverse leakage current 2 ma t j = 25 c (per leg) * see fig. 2 (1) 15 ma t j = 125 c c t max. junction capacitance (per leg) 900 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 10000 v/ s (rated v r ) t j = 25 c t j = 125 c electrical specifications (1) pulse width < 300 s, duty cycle <2% v r = rated v r absolute maximum ratings following any rated load condition and with rated v rrm applied parameters 20ctq units conditions i f(av) max. average forward current 20 a 50% duty cycle @ t c = 145c, rectangular wave form * see fig. 5 i fsm max. peak one cycle non-repetitive 1060 5 s sine or 3 s rect. pulse surge current (per leg) * see fig. 7 265 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 13 mj t j = 25 c, i as = 2.0 amps, l = 6.5 mh (per leg) i ar repetitive avalanche current 2.0 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 20ctq units conditions parameters 20ctq units conditions part number v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 35 40 45 20ctq035spbf 20ctq040spbf 20ctq045spbf 20ctq035-1pbf 20ctq040-1pbf 20CTQ045-1PBF www.vishay.com 2 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 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) .0001 .001 .01 .1 1 10 100 1000 0 5 10 15 20 25 30 35 40 45 r r t = 175c 150c 125c 100c 75c 50c 25c j r everse voltage - v (v) r everse c urrent - i (m a) 100 1000 0 1020304050 t = 25c j reverse voltage - v (v) r t junction capacitance - c (pf) .1 1 10 100 1000 0.2.4.6.811.21.41.61.8 fm f instantaneous forw ard c urrent - i (a) t = 175c t = 125c t = 25c j j j forward voltage d rop - v (v) .001 .01 .1 1 10 .00001 .0001 .001 .01 .1 1 10 100 d = 0.33 d = 0.50 d = 0.25 d = 0.17 d = 0.08 1 thjc t , r ectangul ar pul se durati on (seconds) therm al i m pedance - z (c /w ) single pulse (therm al resi stance) 2 t 1 t p dm not es: 1. duty factor d = t / t 2. peak t = p x z + t 1 jd mthjc c 2 www.vishay.com 3 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 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) 145 150 155 160 165 170 175 180 05101 5 d c al l ow abl e c ase tem perature - (c) average forw ard c urrent - i (a) f( av) 20ctq r (d c) = 3.25c /w thjc 0 1 2 3 4 5 6 7 8 9 0 5 10 15 d c average pow er loss - (w atts) f(av) d = 0.08 d = 0.17 d = 0.25 d = 0.33 d = 0.50 r m s li m it average forw ard current - i (a) 100 1000 10 100 1000 10000 fsm p non-repetitive surge current - i (a) at any rated load condition and with rated v applied following surge rrm square wave pulse duration - t (microsec) free- wh eel diode 40hfl40s 02 c urrent monitor hig h- speed switch irfp460 l dut rg = 25 ohm vd = 25 volt + www.vishay.com 4 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 modified jedec outline to-262 dimensions in millimeters and (inches) conform to jedec outline d 2 pak (smd-220) dimensions in millimeters and (inches) outlines table www.vishay.com 5 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 logo rectifier international lot code assembly example: assembled on ww 19, 2002 lot code 1789 part number year 2 = 2002 p = lead-free date code week 19 this is a 20ctq045-1 lot code 8024 assembled on ww 02, 2000 assembly lot code logo international rectifier p = lead-free date code year 0 = 2000 week 02 part number this is a 20ctq045s 20ctq045s part marking information d 2 pak to-262 dimensions in millimeters and (inches) tape & reel information www.vishay.com 6 document number: 94163
20ctq...spbf, 20ctq...-1pbf series bulletin pd-21029 rev. a 06/06 ordering information table ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7309 06/06 data and specifications subject to change without notice. this product has been designed and qualified for industrial level and lead-free. qualification standards can be found on ir's web site. 20 c t q 045 s trl pbf device code 1 5 2 4 3 6 1 - current rating (20a) 2 - circuit configuration c = common cathode 3 - t = to-220 4 - schottky "q" series 5 - voltage ratings 6 - y s = d 2 pak y -1= to-262 7 - y none = tube (50 pieces) y trl = tape & reel (left oriented - for d 2 pak only) y trr = tape & reel (right oriented - for d 2 pak only) 8 - y none = standard production y pbf = lead-free 7 8 035 = 35v 040 = 40v 045 = 45v www.vishay.com 7 document number: 94163
legal disclaimer notice vishay document number: 99901 www.vishay.com revision: 12-mar-07 1 notice the products described herein were acquired by vishay intertechnology, inc., as part of its acquisition of international rectifier?s power control systems (pcs) business, which closed in april 2007. specifications of the products displayed herein are pending review by vishay and are subject to the terms and conditions shown below. specifications of the products displayed herein are subject to change without notice. vishay intertechnology, inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. information contained herein is intended to provide a product description only. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. except as provided in vishay's terms and conditions of sale for such products, vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and /or use of vishay products including liab ility or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyrigh t, or other intellectual property right. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify vishay for any damages resulting from such improper use or sale. international rectifier ? , ir ? , the ir logo, hexfet ? , hexsense ? , hexdip ? , dol ? , intero ? , and powirtrain ? are registered trademarks of international rectifier corporation in the u.s. and other countries. all other product names noted herein may be trademarks of their respective owners.
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