600 300 400 300 400 600 210 280 420 125 20 v a i r ? ta= 25 ta = 25 electrical characteristics ratings at 25 ambient temperature unless otherwise specified. unit symbols ta=125 maximum forward voltage maximum reverse current v f -55---+150 v v v a a /w v rrm v rms v dc i f(av) i fsm ?? ta = 25 maximum ratings & thermal characteristics ratings at 25 ambient temperature unless otherwise specified. ??? 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?? symbols unit operating junction and storage temperature range tj, tstg r jc features mechanical data ? : ?? case: molded plastic : ???? polarity: symbols molded or marked on body ? : mounting position: any ??? low power loss high efficiency dfrf20a20ct ...... dfrf20a60ct ? 200---600v 20a reverse voltage 200 to 600 v forward current 20 a dfrf20a20ct DFRF20A40CT dfrf20a60ct i f = 10a ?? low forward voltage drop high current capability ?? ns trr i f =0.5a i r =1.0a i rec =0.25a max. reverse recovery time 0.98 1.30 1.80 30 40 ?? plastic ultra-fast recover rectifier dfrf20a30ct 200 200 140 dachang electronics ?? : ?? 0.3 ? * mounting torque recommend 0.3 n*m ???rohs? lead and body according with rohs standard 4.0 250 siyu r unit mm ito-220ab dfrf20a20ct DFRF20A40CT dfrf20a60ct dfrf20a30ct
siyu r i f (a) ?? ? v f (v) ? ?? i fsm (a) ? i f(av) (a) ??? characteristic curves typical forward characteristic forward current derating curve i f instantaneous forward current (a) v f instantaneous forward voltage (v) 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) 0.01 0.1 1 10 100 0.8 1.2 1.4 1 2 4 6 10 20 40 100 100 75 50 25 0 125 1.6 1.0 d f r f 2 0 a 6 0 c t d f r f 2 0 a 3 0 c t d f r f 2 0 a 4 0 c t d f r f 2 0 a 2 0 c t dachang electronics ?? ta( c ) tc, case temperature (c) 0 255075100125150175 24 20 16 12 8 4 0 1.8 tj = 25 c dfrf20a20ct ...... dfrf20a60ct
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