? 50 ---600v 2.0 a sf21 sf22 sf23 sf24 sf25 sf26 SF28 50 100 150 300 400 600 50 100 150 300 400 600 35 70 105 210 280 420 45 50 2.0 5.0 sf21 ...... SF28 sf21 sf22 sf23 sf24 sf25 sf26 SF28 35 1.3 0.95 200 200 140 siyu r ta= 25 ?? i f =0.5a i r =1.0a i rr =0.25a ? v r = 4.0v, f = 1mhz v a ns i r trr maximum reverse current type junction capacitance symbols unit max. reverse recovery time v f i f = 2.0a pf 22 ? maximum forward voltage c j ??? maximum repetitive peak reverse voltage ? maximum rms voltage ??? maximum dc blocking voltage ? maximum average forward rectified current ?? 8.3ms??? peak forward surge current 8.3 ms single half sine-wave typical thermal resistance o?? operating junction and storage temperature range -55 --- +150 v v v a a /w v rrm v rms v dc i f(av) i fsm tj, tstg ?? ta = 25 maximum ratings & thermal characteristics ratings at 25 ambient temperature unless otherwise specified. symbols unit reverse voltage 50 to 600v forward current 2.0a ta = 25 electrical characteristics ratings at 25 ambient temperature unless otherwise specified. r ja 1.0(25.4) min .300(7.6) .230(5.8) 1.0(25.4) min .140(3.6) .104(2.6) dia dia .034(0.9) .028(0.7) do-15 unit inch mm 1.7 dachang electronics features ? low reverse leakage ?? high forward surge capability o?? high temperature soldering guaranteed: 260 /10 , 0.375" (9.5mm) ?? 260 /10 seconds, 0.375" (9.5mm) lead length, ?? 5 (2.3kg) 5 lbs. (2.3kg) tension mechanical data : terminals: plated axial leads : ?? polarity: color band denotes cathode end ? : mounting position: any ??? rohs ? lead and body according with rohs standard 100 ta= 100 ?? plastic super fast recover rectifier
siyu r characteristic curves sf21 ...... SF28 i f (a) ?? ? v f (v) ? ta( c ) ? ?? i fsm (a) ? i f(av) (a) ??? typical forward characteristic forward current derating curve i f instantaneous forward current (a) v f instantaneous forward voltage (v) tamb, ambient temperature (c) i f(a) average forward rectified current (a) maximum non repetitive peak forward surge current number of cycles at 60 hz. i fsm peak forward surge current (a) 0.6 0.8 1 1.2 1.4 1.6 0.01 0.1 0.2 1 2 10 tj = 25 c sf21 thru sf24 sf25 sf26 SF28 1 2 4 6 10 20 40 100 40 30 20 10 0 50 10mm 10mm 2.8 2.4 2 1.6 1.2 0.8 0.4 0 0 25 50 75 100 125 150 175 10mm 10mm dachang electronics
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