glass passivated super fast rectifier voltage range 50 to 600 volts current 8.0 amperes rectron semiconductor technical specification features * low switching noise * low forward voltage drop * low thermal resistance * high current capability * super fast switching speed * high reliability * good for switching mode circuit mechanical data maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. * case: ito-220 mo lded plastic * epoxy: device has ul flammability classification 94v-o * lead: mil-std-202e method 208c guaranteed * mounting position: any * weight: 2.24 grams isf81 thru isf87 ito-220a maximum ra tings (at t a = 25 o c unless otherwise noted) electrical characteristics (at t a = 25 o c unless otherwise noted) notes : 1. t est conditions: if = 0.5a, ir = -1.0a, irr = -0.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. 3. suffix r for reverse polarity. dimensions in inches and (millimeters) 2002-12 ratings maximum recurrent peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current at t c = 100 o c peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) typical thermal resistance typical junction capacitance (note 2) symbol v rrm v dc i fsm c j t j , t stg v rms units volts volts amps 8.0 125 3 50 amps 0 c/w 0 c operating and storage temperature range r q jc i o -55 to + 150 pf volts 30 characteristics at rated dc blocking voltage maximum reverse recovery time (note 1) v f symbol i r nsec uamps maximum dc reverse current maximum instantaneous forward voltage at 8.0a dc volts 10 35 @t c = 100 o c @t c = 25 o c trr 1.0 1.35 500 50 units 100 300 150 isf81 isf83 isf85 ISF82 isf84 200 400 isf86 50 100 300 150 200 400 50 70 210 105 140 280 35 600 isf87 600 420 isf81 isf83 isf85 ISF82 isf84 isf86 isf87 1.70 .138 ( 3.5 ) .406 ( 10.3 ) .114(2.9) .055(1.4) .382 ( 9.7 ) .098( 2.5 ) .039( 1.0 ) .169 ( 4.3 ) .110(2.8) .602 ( 15.3 ) .035 (0.9) .108 (2.75) .091 ( 2.30 ) .020 ( 0.5 ) .579 ( 14.7 ) .031 ( 0.8 ) .016 ( 0.4 ) .185 ( 4.7 ) .122 ( 3.1 ) .154 (3.9) .138 (3.5) .071(1.8) .055(1.4) .531 ( 13.5 ) .492 ( 12.5 ) .114(2.9) .098( 2.5 ) .134 ( 3.4 ) .04max. ( 1.0 ) free datasheet http:///
rectron rating and characteristic curves ( isf81 thru isf87 ) fig. 1 - typical forward current derating curve average forward current, (a) case temperature, ( ) 0 50 100 150 10 8 6 4 2 0 single phase half wave 60hz inductive or resistive load fig. 3 - maximum non-repetitive forward surge current peak forward surge current, (a) number of cycles at 60hz 150 125 100 75 50 25 0 1 2 5 10 20 50 100 8.3ms single half sine-wave (jedec method) fig. 2 - typical reverse characteristics instantaneous reverse current, (ua) percent of rated peak reverse voltage, (%) 1000 100 10 1.0 0.1 20 0 40 60 80 100 120 140 t c = 100 t c = 25 fig. 4 - typical instantaneous forward characteristics instantaneous forward current, (a) instantaneous forward voltage, (v) 40 20 10 4 2 1.0 .4 .2 .1 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 tj=25 pulse width = 300us 1% duty cycle isf81~isf84 isf85~isf86 fig. 5 - typical junction capacitance junction capacitance, (pf) reverse voltage, ( v ) 200 100 60 40 20 10 6 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 isf81~isf84 isf85~isf87 t j = 25 isf87 free datasheet http:///
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