mospec SK320 surface mount schottky barrier rectifiers using the schottky barrier principle with a molybdenum barrier meta. these state-of-the-art geometry feat ures epitaxial construction with oxide passivation and metal overlay contact. ideally suited for low vo ltage, high frequency re ctification, or as free wheeling and polarity protection diodes, in surface mount applications where compact size and weight are critical to the system. features low forward voltage. low switching noise. high current capacity guarantee reverse avalanche. guard-ring for stress protection. low power loss & high efficiency. 150 operating junction temperature low stored charge majority carrier conduction. plastic material used carries underwriters laboratory flammability classification 94v-o in compliance with eu rohs 2002/95/ec directives schottky barrier rectifiers 3.0 amperes 200 volts maximum ratings characteristic symbol SK320 unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 200 v rms reverse voltage v r(rms) 140 v average rectifier forward current i o 3.0 a non-repetitive peak su rge current (surge applied at rate load conditions halfware, single phase, 60hz) i fsm 75 a operating and storage j unction temperature range t j , t stg -65 to +150 electrical characteristics characteristic symbol SK320 unit maximum instantaneous forward voltage ( i f =3.0 amp.) v f 0.95 v maximum instantaneous reverse current ( rated dc voltage, t c = 25 ) ( rated dc voltage, t c = 125 ) i r 0.01 10 ma maximum thermal resistance junction to case r jc 55 /w typical junction capacitance ( reverse voltage of 4 volts & f=1 mhz ) c p 150 p f do-214ac(sma) millimeters dim min max a 2.20 2.80 b 4.10 4.70 c 1.30 1.70 d 4.70 5.30 e 1.90 2.50 f -- 1.30 g -- 0.30 h 0.95 1.50 case--- transfer molded plastic polarity--- cathode indicated polarity band
SK320 fig-1 forward current derating curve fig-2 typical forward characterisitics average forward rectified current (amp.) nstantaneous forward current (amp.) case temperature ( ) forward voltage (volts) fig-3 typical reverse characteristics fig-4 typical junction capacitance instantaneous reverse current (ma.) junction capacitance ( p f) percent of rated reverse voltage ( ) reverse voltage (volts) t j =25 o c t j =75 o c t j =125 o fig-5 peak forward surge current peak forward surge current (amp.) number of cycles at 60 hz
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