features for surface mounted applications metal-semiconductor junction with guarding epitaxial construction very low forward votage drop high current capability plastic material has ul flammability classification 94v-0 for use in lowvoltage, high frequency inverters, free wheeling, and polarity protection applications. mechanical data case molded plastic polarity: lndicated by cathode band weight: 0.002 ounces,0.064 grams maximum ratings and electrical characteristics rating at 25 ambient temperature unless otherwise specified. single phase, half wave ,60hz, resistive or inductive load. for capacitive load, derate current by 20% characteristics symbol ss32a ss33a SS34A ss35a ss36a ss38a ss310a unit 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 @t l =100 peak forward surage current 8.3ms single half sine-wave super imposed on rated load (jedec method) maximum forward voltage at 3.0a dc v f 0.45 0.55 0.6 v maximum dc reverse current @t j =25 at rated dc blocking voltage @t j =100 typical junction capacitance (note1) c j pf typical thermal resistance (note2) r jl /w typical thermal resistance (note3) r ja /w operating temperature range t j storage temperature range t stg 3.thermal resistance junction to ambient. ~ 165 ~ 2.thermal resistance junction to lead. -55 to + 150 -55 to + 175 notes:1.measured at 1.0 mhz and applied reverse voltage of 4.0v dc. 10 50 1.0 20 250 ma i r 0.7 i (av) 3.0 80 a 0.85 surface mount schottky barrier rectifiers ss32a thru ss310a i fsm a dimensions in inches and (millimeters) reverse voltage - 20 to 100 volts forward current - 3.0 amperes sma .055(1.40) .062(1.60) .114(2.90) .098(2.50) .181(4.60) .157(4.00) .012(.305) .006(.152) .002(.051) .008(.203) .208(5.28) .188(4.80) .079(2.00) .103(2.62) .060(1.52) .030(0.76)
rating and charactertic curves ss32a thru ss310a ~ 166 ~ lead temperature fig.5-typical reverse characteristics percent rated peak reverse voltage,(%) i n s t a n t a n e o u s r e v e r s e c u r r e n t , ( m a ) 100 10 1.0 0.1 0.01 0.001 0 20 40 60 80 100 120 140 t j = 125 t j = 25 t j = 100 fig. 1 - forward current derating curve a v e r a g e f o r w a r d c u r r e n t a m p e r e s 25 50 75 100 125 150 175 4.0 1.0 0 5.0 3.0 2.0 single phase half wave 60hz resistive or inductive load c a p a c i t a n c e p f reverse voltage,volts fig.4-typical junction capacitance 0.1 1000 100 10 1.0 4.0 10.0 100 t j =25 f=1mh z fig.2 - maximum non-repetitive surge current p e a k f o r w a r d s u r g e c u r r e n t , a m p e r e s number of cycles at 60hz 1 2 5 10 20 50 100 120 20 0 80 100 60 40 pulse width 8.3ms single half-sine-wave (jedec method) 1.0 0.1 10 0.1 0.3 0.9 0.5 1.1 1.7 0 0.7 1.3 1.5 20 i n s t a n t a n e o u s f o r w a r d c u r r e n t , ( a ) fig.3-typical forward characteristics instantaneous forward voltage, (volts) t j = 25 c pulse width 300us 1% duty cycle ss35a -ss36a ss33a SS34A ss38a -ss310a ss32a
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