dimensions in millimeters and inches outline c - 16 case style and dimensions i f(av) rectangular 3.0 a waveform v rrm 30/40 v i fsm @ tp = 5 s sine 430 a v f @ 3 apk, t j = 25c 0.6 v t j - 40 to 150 c characteristics mbr340 units the mbr340 axial leaded schottky rectifier has been optimized 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 3.0 amp mbr340 bulletin pd-20593 rev. b 03/03 1 www.irf.com
mbr340 bulletin pd-20593 rev. b 03/03 2 www.irf.com v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 40 v fm max. forward voltage drop 0.5 v @ 1.0a * see fig. 1 (1) 0.6 v @ 3.0a t j = 25 c 0.85 v @ 9.4a 0.37 v @ 1.0a 0.49 v @ 3.0a t j = 125 c 0.72 v @ 9.4a i rm max. reverse leakage current 0.6 ma t j = 25 c * see fig. 2 (1) 8 ma t j = 100 c v r = rated v r 20 ma t j = 125 c c t typical junction capacitance 190 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 ) 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 thjl typical thermal resistance junction 28 c/w dc operation (* see fig. 4) to lead (**) wt approximate weight 1.2 (0.042) g (oz.) case style c - 16 thermal-mechanical specifications part number mbr340 parameters mbr340 units conditions parameters mbr340 units conditions (**) mounted 1 inch square pcb, thermal probe connected to lead 2mm from package i f(av) max. average forward current 3.0 a 50% duty cycle @ t c = 92c, rectangular wave form * see fig. 4 i fsm max. peak one cycle non-repetitive 430 5s sine or 3s rect. pulse surge current * see fig. 6 80 10ms sine or 6ms rect. pulse e as non-repetitive avalanche energy 6.0 mj t j = 25 c, i as = 1 amps, l = 12 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 mbr340 units conditions < thermal runaway condition for a diode on its own heatsink (*) dptot 1 dtj rth( j-a)
mbr340 bulletin pd-20593 rev. b 03/03 3 www.irf.com 0 .001 0.01 0.1 1 10 100 0 10203040 25?c t = 150?c j 125?c 10 100 1000 0 40 80 120 160 200 t = 25 ? c j fig. 1 - max. forward voltage drop characteristics forward voltage drop - v fm (v) instantaneous forward current - i f (a) 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 10 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 tj = 150 ? c tj = 125 ? c tj = 25 ? c reverse voltage - v r (v)
mbr340 bulletin pd-20593 rev. b 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 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 average forward current - i f(av) (a) 0 0.5 1 1.5 2 2.5 012345 dc rms limit d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 dc 10 100 1000 10 100 1000 10000 at any rated load condition and with rated vrrm applied following surge 30 50 70 90 110 130 150 170 012345 dc square wave (d = 0.50) 80% rated vr applied see note (2)
mbr340 bulletin pd-20593 rev. b 03/03 5 www.irf.com ordering information table device code 1 2 3 1 - schottky mbr series 2 - current rating: 3 = 3a 3 - voltage rating: 40 = 40v 4 - tr = tape & reel package (1200 pcs) - = box package (500 pcs) mbr 3 40 tr 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. 03/03 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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