2012. 7. 24 1/2 semiconductor technical data smab14 schottky barrier type diode revision no : 5 switching type power supply applications. features h low profile surface mount package. h low power loss, high efficiency. h for use in low voltage, high frequency inverters, free wheeling, and polarity protection applications. application h switching power supply. h dc/dc converter. h home appliances, office equipment. h telecommunication. maximum rating (ta=25 ? ) sma dim millimeters a b c d e f g 4.5 0.2 2.6 0.2 1.5 0.2 5.0 0.3 1.2 0.3 2.0 0.2 0 ~ 0.15 h r 0.5 a b c h d e e 1 2 f g + _ + _ + _ + _ + _ + _ 1. anode 2. cathode electrical characteristics (ta=25 ? ) type name marking b 1 4 lot no. characteristic symbol test condition min. typ. max. unit peak forward voltage v fm i fm =1.0a - - 0.5 v repetitive peak reverse current i rrm v rrm =rated - - 0.2 ma thermal resistance r th(j-1) junction to lead - - 23 ? /w r th(j-a) junction to ambient (on alumina substrate) - - 108 characteristic symbol rating unit maximum repetitive peak reverse voltage v rrm 40 v average output rectitifed current i o 1 a peak one cycle surge forward current (non-repetitive 60hz) i fsm 40 a junction temperature t j -55 q 150 ? storage temperature range t stg -55 q 150 ?
2012. 7. 24 2/2 smab14 revision no : 5 i - v ff f forward voltage v (v) f forward current i (a) number of cycles at 60hz peak surge forward current i (a) 1 0 10 20 60 50 40 30 fsm 10 330 550 surge forward current (non - repetitive) 100 t =25 c f=60hz p - i f(av) f(av) f(av) average forward current i (a) 0 0 0.1 0.2 0.3 0.4 0.5 f(av) average forward power dissipation p (w) 0.2 0.4 0.6 0.8 1.0 1.2 rectangular waveform 180 360 ta - i f(av) f ( av ) average forward current i (a) 0 0 20 40 60 80 100 120 140 maximum allowable temperature ta max ( c) 0.2 0.4 0.6 0.8 1.0 1.2 rectangular waveform 180 360 0 0.1 0.3 0.5 0.7 0.2 0.4 0.6 0.8 0.1 0.3 0.5 1 3 t =125 c 25 c j j
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