supe rfast recovery rectifiers voltag e - 50 to 8 00 volts current - 3.0 amperes features ? superfast recovery times-epitaxial construction ? low forward voltage, high current capability ? exceeds environmental standards of mil-s-19500/228 ? hermetically sealed ? low leakage ? high surge capability ? plastic package has underwriters laboratories flammability classification 94v-o utilizing flame retardant epoxy molding compound high temperature soldering : 260 ? o c / 10 seconds at terminals pb free product at available : 99% sn above meet rohs ? environment substance directive request mechanical data ? case: molded plastic, do-201ad ? terminals: axial leads, solderable to mil-std-202, method 208 ? polarity: color band denotes cathode end ? mounting position: any ? weight: 0.04 ounce, 1.12 grams maximum ratings and electrical characteristics ratings at 25 ambient temperature unless otherwise specified. resistive or inductive load, 60hz. sf31g sf32g sf33g sf34g sf35g sf36g SF37G sf38g units maximum recurrent peak reverse voltage 50 100 150 200 300 400 600 800 maximum rms voltage 35 70 105 140 210 320 420 640 maximum dc blocking voltage 50 100 150 200 300 400 600 800 maximum average forward current .375"(9.5mm) lead length at ta=55 3.0 a peak forward surge current, ifm (surge): 8.3ms single half sine-wave superimposed on rated load(jedec method) 125.0 a maximum forward voltage at 3.0a dc 0.95 1.25 1.7 maximum dc reverse current at rated dc blocking voltage 5.0 ua maximum dc reverse current at rated dc blocking voltage ta=125 300 maximum reverse recovery time(note 1) 35.0 ns typical junction capacitance (note 2) 35 pf typical junction resistance(note 3) 20.0 /w operating and storage temperature range tj -55 to +150 notes: 1. reverse recovery test conditions: if=.5a, ir=1a, irr=.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 vdc 3. thermal resistance from junction to ambient and from junction to lead length 0.375?(9.5mm) p.c.b. mounted .375 (9.5) .285 (7.2) .210 (5.3) .188 (4.8) .052 (1.3) .048 (1.2) dia. dia. do-201ad unit:inch(mm) 1.0 (25.4) min. 1.0 (25.4) min. ua r ja symbols vrrm vrms vdc i(av) ifsm vf ir trr cj tj,tstg ir data sheet sf31g~sf38 g semiconductor http://www.yeashin.com 1 rev.02 20110725 c c c c v v v v
r atings and characteristic curves 0.1 1.0 .01 10 50 fig.4-typical reverse fig.1- test circuit diagram and reverse recovery time characteristic characteristics fig.2-typical forward current a verage forward current,(a) fig.6-typical junction capacit ance reverse voltage,(v) junction capacitance,(pf) reverse leakage current, ( a) 0.5 1.0 1.5 2.0 2.5 3.0 175 150 125 100 75 50 25 0 (+) (+) 25vdc (approx.) ( ) ( ) 10 noninductive 50 noninductive ? ? pulse generator (note 2) oscilliscope (note 1) 1 non- inductive ? notes: 1. rise time= 7ns max., input impedance= 1 megohm.22pf. 2. rise time= 10ns max., source impedance= 50 ohms. +0.5a 0 -0.25a -1.0a | | | | | | | | 1cm set time base for 50 / 10ns / cm trr .01 .05 .1 .5 1 5 10 50 100 d.u.t. 3.0 single phase half wave 60hz resistive or inductive load 0.375"(9.5mm) lead length derating curve tj=100 c tj=25 c 25 0 50 75 100 125 number of cycles at 60hz 1 10 5 50 100 tj=25 c 8.3ms single half sine wave jedec method 0 0 25 50 75 100 125 150 175 ambient temperature,( c) 0 percent of rated peak reverse volt age,(%) 20 40 60 80 100 120 140 peak forward surge current,(a) fig.5-maximum non-repetitive forward surge current 0.1 1.0 .01 10 50 fig.3-typical forward characteristics inst antaneous forward current,(a) forward volt age,(v) pulse width 300us 1% duty cycle .4 .6 .8 1.0 1.2 1.4 1.6 1.8 3.0 sf35g~sf36g SF37G-sf38g sf31g~sf34g tj=25 c s f31g~sf 38 8 g h ttp://www.yeashin.com 2 rev.02 20110725
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