2007. 6. 13 1/2 SMCB34 schottky barrier type diode revision no : 1 switching type power supply applications. features low profile surface mount package. low power loss, high efficiency. for use in low voltage, high frequency inverters, free wheeling, and polarity protection applications. application switching power supply. dc/dc converter. home appliances, office equipment. telecommunication. maximum rating (ta=25 ) smc dim millimeters a a b b 1 2 c c d d e e e f f g 6.60 ~ 7.11 5.59 ~ 6.22 2.92 ~ 3.07 7.75 ~ 8.13 0.76 ~ 1.52 2.00 ~ 2.62 0.15 ~ 0.31 0.10 ~ 0.20 h g h 1. anode 2. cathode type name marking b34 lot no. characteristic symbol rating unit maximum repetitive peak reverse voltage v rrm 40 v average output rectitifed current i o 3 a peak one cycle surge forward current (non-repetitive 60hz) i fsm 100 a junction temperature t j -40 150 storage temperature range t stg -40 150 electrical characteristics (ta=25 ) characteristic symbol test condition min. typ. max. unit peak forward voltage v fm i fm =3a - - 0.5 v repetitive peak reverse current i rrm v rrm =rated, tj=25 - - 0.1 ma v rrm =rated, tj=100 - - 10 ma total capacitance c t v r =4v, f=1mhz - - 250 pf thermal resistance r th(j-1) junction to lead - - 10 /w r th(j-a) junction to ambient - - 50 /w semiconductor technical data
2007. 6. 13 2/2 SMCB34 revision no : 1 i f - v f forward voltage v f (v) forward current i f (a) number of cycles at 60hz peak surge forward current i (a) 1 0 20 40 120 80 100 60 fsm 10 5 22050 surge forward current (non - repetitive) 100 ta=25 c f=60hz p f - i f forward current i f (a) 0 0.0 0.5 1.0 1.5 2.5 2.0 forward power p f (w) 123456 tp t t l - i f forward current (a) 0 0 20 40 60 80 100 120 160 140 123 maximum allowable temperature tl max ( c) 0.0 0.1 0.2 0.3 0.4 0.6 0.5 0.7 0.8 10 1 0.1 t j =150 c i r - v r reverse voltage v r (v) reverse current i r (ma) 010 30 20 40 100 10 0.1 0.001 0.01 1 d=tp/t 0.1 0.2 0.5 d=0.8 dc t j =150 c t j =100 c t j =25 c t j =150 c t j =100 c t j =25 c
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