pd - 2.354b schottky rectifier 35 amp 25gq045 the 22gq045 schottky rectifier has been expressly designed to meet the rigorous requirements of hi-rel environments. it is packaged in the hermetic, isolated, to-254aa package and has extremely low reverse leakage at high temperature. full mil-prf-19500 quality conformance testing is available on source controlled drawings to jantx, jantxv, or jans levels. typical applications include switching power supplies and resonant power converters. ? hermetically sealed ? low forward voltage drop ? high frequency operation ? guard ring for enhanced ruggedness and long term reliability ? electrically isolated ? ceramic eyelets desciption/features preliminary characteristics 25gq045 units i f(av) rectangular 35 a waveform v rrm 45 v i fsm @ t p = 8.3ms sine 400 a v f @ 35apk, t j = 125c 0.84 v t j , t stg operating and storage -55 to 150 c major ratings and characteristics case style conforms to jedec outline to-254aa* dimensions in millimiters and (inches) notes: 1. dimensioning and t olerancing per anci ansi y14.5m-1982 2. glass meniscus included in dim d and e. 3. controlling dimension: inch. (isolated base) 12 3 cathode anode
25gq045 part number 25gq045 v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 45 parameters 25gq045 units conditions i f(av) max. average forward current 35 a 50% duty cycle @ t c = 100c, rectangular waveform see fig. 4 i fsm max. peak one cycle non - repetitive 400 a @ t p = 8.3 ms sine surge current absolute maximum ratings parameters 25gq045 units conditions v fm max. forward voltage drop 0.93 v @ 35a (per leg) see fig. 1 ? 1.38 v @ 70a 0.84 v @ 35a 1.29 v @ 70a i rm max. reverse leakage current 0.80 ma t j = 25c (per leg) see fig. 2 ? 45 ma t j = 125c c t max. junction capacitance 2600 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance 8.7 nh measured lead to lead 5mm from package body t j = 25c t j = 125c v r = rated v r electrical specifications ? pulse width < 300s, duty cycle < 2% parameters 25gq045 units conditions 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 1.00 c/w dc operation see fig. 5 to case (per leg) r thcs typical thermal resistance, case 0.21 c/w mounting surface, smooth and greased to heatsink wt weight (typical) 9.3 g die description (square) 0.200 inches case style to-254aa jedec thermal-mechanical specifications
25gq045 fig. 1 - max. forward voltage drop characteristics fig. 3 - typical junction capacitance vs. reverse voltage fig. 2 - typical values of reverse current vs. reverse voltage fig. 4 - max. allowable case temperature vs. average forward current reverse current - i r ( ma ) 0.001 0.01 0.1 1 10 100 01020304050 r a 25c 100c 125c t = 150c j reverse voltage - v (v)
25gq045 fig.5 - max. thermal impedance z thjc characteristics (per leg) world headquarters: 233 kansas st., el segundo, california 90245, tel: (310) 322 3331 european headquarters: hurst green, oxted, surrey rh8 9bb, uk tel: ++ 44 1883 732020 ir canada: 7321 victoria park ave., suite 201, markham, ontario l3r 2z8, tel: (905) 475 1897 ir germany: saalburgstrasse 157, 61350 bad homburg tel: ++ 49 6172 96590 ir italy: via liguria 49, 10071 borgaro, torino tel: ++ 39 11 451 0111 ir far east: k&h bldg., 2f, 30-4 nishi-ikebururo 3-chome, toshima-ku, tokyo japan 171 tel: 81 3 3983 0086 ir southeast asia: 315 outram road, #10-02 tan boon liat building, singapore 0316 tel: 65 221 8371 http://www.irf.com/data and specifications subject to change without notice. 11/96
|
