sf31g thru sf38g crownpo technology www.crownpo.com 01-dec-03 document no. 12047 glass passivated ultrafast rectifier reverse voltage 50 to 600 v forward current 3.0 a maximum ratings & thermal characteristics ratings at 25?c ambient temperature unless otherwise specified. parameter symbol s f 31 g unit maximum repetitive peak reverse voltage v rrm 50 100 150 200 300 400 v maximum rms voltage v rms 35 70 105 140 210 280 v maximum dc blocking voltage v dc 50 100 150 200 300 400 v maximum average forward rectified current 0.375" (9.5mm) lead length at t l = 55?c i f(av) 3.0 a peak forward surge current 8.3ms single half i fsm 125 a typical thermal resistance (note 1) r ja 20 ?c/w r jl 8.0 operating and storage temperature range t j ,t stg 65 to +150 ?c electrical characteristics ratings at 25?c ambient temperature unless otherwise specified. parameter symbol unit maximum instantaneous forward voltage at 3.0a v f 0.95 1.25 v maximum dc reverse current t a = 25?c 5 at rated dc blocking voltage t a = 125?c i r 100 e a maximum reverse recovery time at i f = 0.5a, i r = 1.0a, i rr = 0.25a t rr 35 ns typical junction capacitance at 4.0v, 1mhz c j 85 75 pf note: (1) thermal resistance from junction to ambient, and from junction to lead at 0.375 (9.5mm) lead length, p.c.b. mounted sine-wave superimposed on rated load s f 32 g s f 33 g s f 34 g s f 35 g s f 36 g s f 37 g s f 38 g 500 600 350 420 500 600 s f 31 g s f 32 g s f 33 g s f 34 g s f 35 g s f 36 g s f 37 g s f 38 g 1.7 dimensions in inches and (millimeters) 0.220 (5.6) 0.190 (4.8) dia. 0.052 (1.3) 0.048 (1.2) dia. 1.0 (25.4) min. 0.375 (9.5) 0.285 (7.2) 1.0 (25.4) min. d0201ad features plastic package has underwriters laboratories flammability classification 94v-0 cavity-free glass passivated junction ultrafast recovery time for high efficiency low forward voltage, high current capability low leakage current high surge current capability high temperature metallurgically bonded construction high temperature soldering guaranteed: 300?c/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension mechanical data case: molded plastic over solid glass body terminals: axial leads, solderable per mil-std-750, method 2026 polarity: color band denotes cathode end mounting position: any weight: 0.04 oz., 1.12g n n n n n n n n free datasheet http://www..net/
sf31g thru sf38g crownpo technology www.crownpo.com 01-dec-03 document no. 12047 ratings and characteristic curves (t a = 25?c unless otherwise noted) fig. 2 - maxim um non-repetitive peak forward surge current peak forward surge current (a) number of cycles at 60 h z 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.1 1 10 100 2.0 3.0 0 0 0 30 60 90 120 150 180 210 1 10 100 1000 25 50 75 100 125 150 175 fig. 1 - maxim um forward current derating curve average forward rectified current (a) ambient temperature ( - c) instantaneous forward voltage (v) fig. 3 - typical instantaneous forward characteristics fig. 4 - typical reverse leakage characteristics instantaneous reverse leakage current ( e a) percent of rated peak reverse voltage (%) 1.0 resistive or inductive load 0.375" (9.5mm) lead length instantaneous forward current (a) reverse voltage (v) junction capacitance (pf) fig. 5 - typical junction capacitance t, pulse duration (sec.) transient thermal impedance ( - c/w) fig. 6 - t ypical transient thermal impedance 1 10 100 0 25 50 75 100 125 150 175 0 20 40 60 80 0.001 0.01 0.1 1 10 100 100 0.01 0.1 1 10 100 0.1 1 10 100 t j = t j max. 8.3ms single half sine-wave (jedec method) t j = 150 - c t j = 125 - c t j = 75 - c t j = 25 - c t j = 25 - c f = 1.0 mh z vsig = 50mvp-p sf31g s sf34g sf35g & sf38g sf31g~sf34g sf35g~s f36g SF37G~sf38g pulse width = 300 e s 1% duty cycle t j = 25 - c free datasheet http://www..net/
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