sk32a thru SK310A page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 3a surface mount schottky barrier rectifiers sk32a thru SK310A features z for surface mounted applications z low profile package z built-in strain relief z easy pick and place z plastic material used carries underwriters laboratory classification 94 v-0 z extremely low vf z majority carrier conduction z high temperature soldering: 250 c /10 seconds at terminals mechanical data z case: thin sma, dimensions in inches and (millimeters) z terminals: solder plated z polarity: indicated by cathode band z weight: 0.05 grams maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified single phase, half wave, 60 hz, resistive or inducti ve load. for capacitive load, derate current by 20% ratings symbol sk32a sk33a sk34a sk35a sk36a sk38a SK310A units maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 80 100 v maximum rms voltage v rms 14 21 28 35 42 56 70 v maximum dc blocking voltage v dc 20 30 40 50 60 80 100 v maximum average forward rectified current see fig.1 i o 3.0 a maximum overload surge 8.3ms single half sine-wave i fsm 80 a storage temperature range t stg -55 to + 150 operating temperature range t op -55 to + 125 -55 to + 150 electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol sk32a sk33a sk34a sk35a sk36a sk38a SK310A units maximum forward voltage at 3.0a ac and 25 v f 0.55 0.70 0.85 v maximum reverse current at 25 i r 0.5 ma marking sk32 or ss32 sk33 or ss33 sk34 or ss34 sk35 or ss35 sk36 or ss36 sk38 or ss38 k310 or s310 .165(4.2) .150(3.8) .185(4.8) .177(4.4) .04(1.0) typ .110(2.8) .094(2.4) cathode .067(1.7) .060(1.5) .012(0.3) typ .220(5.58) ref .052(1.32) min .08(2.03) min soldering pad .094(2.38) max
sk32a thru SK310A page: 2 ratings and characteristic curve sk32a thru SK310A fig. 3a - typical reverse characteristics 100 10 1.0 .10 .01 .001 instantaneous reverse current, milliamperes 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage, (%) t j =125 t j =75 t j =25 s k 32a~s k 34a 100 10 1.0 .10 .01 .001 instantaneous reverse current, milliamperes 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage, (%) fig. 3b - typical reverse characteristics fig. 2 - typical instantaneous forward characteristics 20 10 1.0 0.1 instantaneous forward current amperes .1 .3 .5 .7 .9 1.1 1.3 1.5 1.7 1.9 2.1 instantaneous forward voltage, volts t j =25 p u l s e w idth= 300us 1 % d u ty c y c le sk32a~sk34a sk35a~SK310A fig. 1 - forward current derating curve 3.0 2.25 1.5 0.75 0 average forward current amperes 0 25 50 75 100 125 150 175 single phase half wave 60h z resistive or inductive load lead temperature, p.c.b mounted on 0.30.3?(8.08.0mm) copper pad areas sk32a~sk35a sk36a~SK310A t j =150 t j = 75
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