dimensions in millimeters and inches outline c - 16 case style and dimensions i f(av) rectangular 3.3 a waveform v rrm 50/60 v i fsm @ tp = 5 s sine 340 a v f @ 3 apk, t j = 25c 0.62 v t j - 40 to 150 c characteristics 31dq.. units the 31dq.. axial leaded schottky rectifier has been opti- mized for very low forward voltage drop, with moderate leakage. typical applications are in switching power sup- plies, converters, free-wheeling diodes, and reverse battery protection. low profile, axial leaded outline high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance very low forward voltage drop high frequency operation guard ring for enhanced ruggedness and long term reliability description/ features major ratings and characteristics schottky rectifier 3.3 amp 31dq05 31dq06 bulletin pd-2.305 rev. e 03/03 1 www.irf.com
31dq05, 31dq06 bulletin pd-2.305 rev. e 03/03 2 www.irf.com v fm max. forward voltage drop 0.62 v @ 3a * see fig. 1 (1) 0.78 v @ 6a 0.54 v @ 3a 0.65 v @ 6a i rm max. reverse leakage current 2 ma t j = 25 c * see fig. 2 (1) 15 ma t j = 125 c c t typical junction capacitance 160 pf v r = 5v dc , (test signal range 100khz to 1mhz) 25c l s typical series inductance 9.0 nh measured lead to lead 5mm from package body dv/dt max. voltage rate of change 10000 v/s (rated v r ) part number 31dq05 31dq06 v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 50 60 t j = 25 c t j = 125 c v r = rated v r parameters 31dq.. units conditions electrical specifications (1) pulse width < 300s, duty cycle <2% t j max. junction temperature range (*) -40 to 150 c t stg max. storage temperature range -40 to 150 c r thja max. thermal resistance junction 80 c/w dc operation to ambient without cooling fins r thjl typical thermal resistance junction 34 c/w dc operation to lead wt approximate weight 1.2 (0.042) g (oz.) case style c - 16 thermal-mechanical specifications parameters 31dq.. units conditions i f(av) max. average forward current 3.3 a 50% duty cycle @ t c = 40c, rectangular wave form * see fig. 4 i fsm max. peak one cycle non-repetitive 340 5s sine or 3s rect. pulse surge current * see fig. 6 55 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 5.0 mj t j = 25 c, i as = 1 amps, l = 10 mh i ar repetitive avalanche current 1.0 a current decaying linearly to zero in 1 sec frequency limited by t j max. v a = 1.5 x v r typical absolute maximum ratings following any rated load condition and with rated v rrm applied a parameters 31dq.. units conditions < thermal runaway condition for a diode on its own heatsink (*) dptot 1 dtj rth( j-a)
31dq05, 31dq06 bulletin pd-2.305 rev. e 03/03 3 www.irf.com fig. 1 - max. forward voltage drop characteristics forward voltage drop - v fm (v) instantaneous forward current - i f (a) reverse voltage - v r (v) reverse voltage - v r (v) junction capacitance - c t (pf) fig. 3 - typical junction capacitance vs. reverse voltage fig. 2 - typical values of reverse current vs. reverse voltage reverse current - i r (ma) 0 .1 1 10 0 0.2 0.4 0.6 0.8 1 t = 150?c t = 125?c t = 25?c j j j 0 .001 0.01 0.1 1 10 100 0204060 125 ? c 25 ? c t = 150 ? c j 10 100 1000 0 40 80 120 160 t = 25 ? c j
31dq05, 31dq06 bulletin pd-2.305 rev. e 03/03 4 www.irf.com average forward current - i f (av) (a) square wave pulse duration - t p (microsec) fig. 6 - max. non-repetitive surge current allowable lead temperature (c) non-repetitive surge current - i fsm (a) fig. 5 - forward power loss characteristics average forward current - i f (av) (a) average power loss (watts) (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 fig. 4 - max. allowable lead temperature vs. average forward current 0 0 .5 1 1 .5 2 2 .5 3 012345 dc rms limit d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 10 100 1000 10 100 1000 10000 at any rated load condition and with rated v applied following surge rrm 0 30 60 90 120 150 012345 dc see note (2) square wave (d = 0.50) 80% rated vr applied
31dq05, 31dq06 bulletin pd-2.305 rev. e 03/03 5 www.irf.com 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. 03/02 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. ordering information table device code 1 5 24 3 1 - 31 = 3.1a (axial and small packages - current is x10) 2 - d = do-41 package 3 - q = schottky q.. series 4 - 06 = voltage ratings 5 - tr = tape & reel package (1200 pcs) - = box package (500 pcs) 31 d q 06 tr 06 = 60v 05 = 50v
|
