dimensions in millimeters and inches conform to jedec outline do-204al (do-41) case style and dimensions major ratings and characteristics i f(av) rectangular 1.0 a waveform v rrm 30/40 v i fsm @ tp = 5 s sine 225 a v f @ 1 apk, t j = 25c 0.55 v t j range - 40 to 150 c characteristics units the 1n5818/ 1n5819 axial leaded schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. typical applications are in switching power supplies, 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 schottky rectifier 1.0 amp 1n5818 1n5819 bulletin pd-20590 rev. a 05/02 1 1n5818 1n5819 device marking: 1n581x www.irf.com
1n5818, 1n5819 bulletin pd-20590 rev. a 05/02 2 www.irf.com part number 1n5818 1n5819 v r max. dc reverse voltage (v) v rwm max. working peak reverse voltage (v) voltage ratings 30 40 i f(av) max. average forward current 1.0 a 50% duty cycle @ t l =90 c, rectangular wave form * see fig. 4 i fsm max. peak one cycle non-repetitive 225 5s sine or 3s rect. pulse surge current * see fig. 6 35 10ms sine or 6ms rect. pulse absolute maximum ratings parameters value units conditions following any rated load condition and with rated v rrm applied a t j max. junction temperature range -40 to 150 c t stg max. storage temperature range -40 to 150 c r thjl max. thermal resistance junction 80 c/w dc operation (* see fig. 4) to lead (2) wt approximate weight 0.33(0.012) g (oz.) case style do-204al(do-41) thermal-mechanical specifications parameters value units conditions parameters 1n5818 1n5819 units conditions v fm max. forward voltage drop 0.55 0.6 v @ 1a * see fig. 1 (1) 0.71 0.73 v @ 2a t j = 25 c 0.875 0.9 v @ 3a 0.5 0.55 v @ 1a 0.61 0.63 v @ 2a t j = 125 c 0.77 0.79 v @ 3a i rm max. reverse leakage current 1.0 ma t j = 25c * see fig. 2 (1) 6.0 ma t j = 100c 12 ma t j = 125c c t max. junction capacitance 60 pf v r = 5v dc (test signal range 100 to 1mhz) 25c l s typical series inductance 8.0 nh measured lead to lead 5mm from pack. body dv/dt max. voltage rate of change 10000 v/s (rated v r ) electrical specifications v r = rated v r (1) pulse width < 300s, duty cycle < 2% (2) mounted 1 inch square pcb, thermal probe connected to lead 2mm from package
1n5818, 1n5819 bulletin pd-20590 rev. a 05/02 3 www.irf.com 10 100 0 1020304050 t = 25?c j fig. 1 - typ. 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 1.2 tj = 150 ? c tj = 125 ? c tj = 25 ? c 0.0001 0.001 0.01 0.1 1 10 100 010203040 125 ? c 25 ? c t = 150 ? c j
1n5818, 1n5819 bulletin pd-20590 rev. a 05/02 4 www.irf.com 10 100 1000 10 100 1000 10000 at any rated load condition and with rated v applied following surge rrm average forward current - i f(av) (a) square wave pulse duration - t p (microsec) fig. 6 - typ . 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 - typ. allowable lead temperature vs. average forward current 40 60 80 100 120 140 160 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 dc square wave (d = 0.50) rated vr applied see note (3) 0 0.2 0.4 0.6 0.8 0 0.5 1 1.5 dc rms limit d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 dc average forward current - i f(av) (a)
1n5818, 1n5819 bulletin pd-20590 rev. a 05/02 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. 05/02 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 2 1 - part number 2 - tr= tape & reel package (5000 pcs) - = box package (1000 pcs) 1n5819 tr 1n5818 = 1a, 30v 1n5819 = 1a, 40v
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