stps340u/s/b power schottky rectifier single chip schottky rectifier suited for switch mode power supplies and high frequency dc to dc converters. packaged in smb, smc and dpak this device is intended for use in low and medium voltage operation, high frequency inverters, free wheeling and polarity protection applications where low switching losses are required. description smb (jedec do-214aa) stps340u very small conduction losses negligible switching losses low forward voltage drop low thermal resistance extremely fast switching surface mounted device symbol parameter value unit v rrm repetitive peak reverse voltage 40 v i f(rms) rms forward current dpak 6a smb / smc 10 i f(av) average forward current t c = 135c d = 0.5 dpak 3 a t l = 105 c d = 0.5 smb / smc i fsm surge non repetitive forward current tp = 10 ms sinusoidal 75 a i rrm repetitive peak reverse current tp = 2 m s f = 1khz square 1a tstg storage temperature range - 65 to + 150 c tj maximum operating junction temperature + 150 c dv/dt critical rate of rise of reverse voltage 10000 v/ m s absolute ratings (limiting values) smc (jedec do-214ab) stps340s k a nc dpak STPS340B i f(av) 3 a v rrm 40 v tj (max) 150 c v f (max) 0.57 v main product characteristics product specification 1 of 3 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
symbol tests conditions tests conditions min. typ. max. unit i r * reverse leakage current tj = 25 cv r = v rrm 20 m a tj = 125 cv r = v rrm 210ma v f * forward voltage drop tj = 25 ci f = 3 a 0.63 v tj = 25 ci f = 6 a 0.84 tj = 125 ci f = 3 a 0.52 0.57 tj = 125 ci f = 6 a 0.63 0.72 static electrical characteristics pulse test : * tp = 380 m s, d < 2 % to evaluate the maximum conduction losses use the following equation : p = 0.42 x i f(av) + 0.050 i f 2 (rms) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 1.5 2.0 2.5 if(av) (a) pf(av)(w) t d =tp/t tp d = 1 d = 0.5 d = 0.2 d = 0.1 d = 0.05 fig. 1: average forward power dissipation versus average forward current. 0 25 50 75 100 125 150 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 tamb(c) if(av)(a) rth(j-a)=65c/w rth(j-a)=rth(j-l) (smb/smc) rth(j-a)=rth(j-c) (dpak) t d =tp/t tp fig. 2: average current versus ambient temperature (d =0.5) . symbol parameter value unit r th (j-l) junction to leads smc 20 c/w smb 25 r th (j-c) junction to case dpak 5.5 c/w thermal resistances stps340u/s/b product specification 2 of 3 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
package mechanical data smc e c l e2 e1 d a1 a2 b ref. dimensions millimeters inches min. max. min. max. a1 1.90 2.45 0.075 0.096 a2 0.05 0.20 0.002 0.008 b 2.90 3.2 0.114 0.126 c 0.15 0.41 0.006 0.016 e 7.75 8.15 0.305 0.321 e1 6.60 7.15 0.260 0.281 e2 4.40 4.70 0.173 0.185 d 5.55 6.25 0.218 0.246 l 0.75 1.60 0.030 0.063 2.0 4.2 2.0 3.3 footprint dimensions (in millimeters) ordering type marking package weight base qty delivery mode stps340u u34 smb 0.107g 2500 tape and reel stps340s s34 smc 0.243g 2500 tape and reel STPS340B s340 dpak 0.30g 75 tube STPS340B-tr s340 dpak 0.30g 2500 tape and reel band indicates cathode on smb, smc epoxy meets ul94,v0 stps340u/s/b product specification 3 of 3 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
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