ds24002 rev. c-3 1 of 2 sf31-SF24 features low leakage low fforward voltage drop high current capability super-fast switching speed < 35ns plastic material - ul flammability rating 94v-0 mechanical data case: 5w, molded plastic terminals: plated axial leads, solderable per mil-std-202, method 208 polarity: color band denotes cathode approx. weight: 0.4 grams mounting position: any ratings at 25 c ambient temperature unless otherwise specified. single phase, halfwave, 60hz, resistive or inductive load. for capacitive load, derate current 20%. maximum ratings and electrical characteristics characteristic symbol sf21 sf22 sf23 SF24 unit maximum recurrent peak reverse voltage v rrm 50 100 150 200 v maximum rms voltage v rms 35 70 105 140 v maximum dc blocking voltage v dc 50 100 150 200 v maximum average forward rectified current 9.5mm lead length @ t a =55 c i (av) 2.0 a peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) i fsm 50 a maximum instantaneous forward voltage @ 2.0a dc v f 0.975 v maximum dc reverse current at rated dc blocking voltage i r 5a maximum dc reverse current at rated dc blocking voltage @ t a =150 c i r 50 a maximum reverse recovery time (note 1) t rr 35 ns typical junction capacitance (note 2) c j 70 pf operating and storage temperature range t j ,t stg -65 to + 175 c notes: 1. reverse recovery test conditions: i f =0.5 a, i r =1.0 a, i rr =0.25a 2. measured at 1.0mhz and applied reverse voltage of 4.0v. a a b c d sf21 - SF24 2.0a super-fast recovery rectifier 5w dim min max a 25.4 b 8.38 8.89 c 0.94 1.09 d 3.30 3.68 all dimensions in mm power semiconductor
ds24002 rev. c-3 2 of 2 sf31-SF24 0.01 0.1 1.0 10 100 0 20 40 60 80 100 120 140 i , instantaneous reverse current (a) r percent of rated peak reverse voltage (%) fig. 2, typical reverse characteristics t = 150c j t = 100c j t = 25c j 0.001 0.01 0.1 10 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 i , instantaneous forward current (amperes) f v , instantaneous forward voltage (volts) fig. 3, typical instantaneous fwd characteristics f t = 25c j pulse width = 300s 1% duty cycle 20 25 30 35 40 45 50 55 1 10 100 i , peak forward surge current (amperes) fsm number of cycles at 60 hz fig. 4, max non-repetitive peak fwd surge current 0 20 40 60 80 100 120 140 0.1 1 10 100 1000 c , junction capacitance (pf) j v , reverse voltage (volts) fig. 5, typical junction capacitance r t = 25c j 0 1.0 2.0 0 25 50 75 100 125 150 175 i , average forward current (amperes) (av) t , ambient temperature (c) fig. 1, typical fwd current derating curve a single phase half wave 60 hz resistive or inductive load
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