cystech electronics corp. spec. no. : c193ld issued date : 2012.12.11 revised date : page no. : 1/3 sf31g thru sf38g cystek product specification 3.0amp. glass passivated super fast rectifiers sf31g thru sf38g features ? high current capability ? high reliability ? low forward voltage drop ? high surge current capability mechanical data ? case: molded plastic do-201ad ? terminals: solder plated, solderable per mil-std-750 method 2026 ? polarity: indicated by cathode band. ? epoxy : ul94v-0 rate flame retardant ? weight: 0.041 oz., 1.15 gram maximum ratings and electrical characteristics ( rating at 25 c ambient temperature unless otherwise specified. ) type parameter symbol sf 31g sf 32g sf 33g sf 34g sf 35g sf 36g sf 37g sf 38g units repetitive peak reverse voltage v rrm 50 100 150 200 300 400 500 600 v maximum rms voltage v rms 35 70 105 140 210 280 350 420 v maximum dc blocking voltage v r 50 100 150 200 300 400 500 600 v maximum instantaneous forward voltage, i f =3a (note 1) v f 0.95 1.3 1.7 v reverse recovery time trr 35 ns average forward rectified current @t a =95 i fav 3 a peak forward surge current @8.3ms single half sine wave superimposed on rated load (jedec method) i fsm 125 a maximum dc reverse current v r =v rrm ,t a =25 (note 1) v r =v rrm ,t a =100 (note 1) i r 5 100 a a storage temperature tstg -55 ~ +150 operating temperature t j -55 ~ +150 notes : 1. pulse test, pulse width=300 sec, 2% duty cycle 2 . reverse recovery test condition: i f =0.5a, i r =1.0a, i rr =0.25a
cystech electronics corp. spec. no. : c193ld issued date : 2012.12.11 revised date : page no. : 2/3 sf31g thru sf38g cystek product specification characteristic curves
cystech electronics corp. spec. no. : c193ld issued date : 2012.12.11 revised date : page no. : 3/3 sf31g thru sf38g cystek product specification do-201ad dimension do-201ad molded plastic package cystek package code: ld inches millimeters inches millimeters dim min. max. min. max. dim min. max. min. max. a ? 0.048 ? 0.052 ? 1.20 ? 1.30 d 1.000 - 25.40 - b 1.000 - 25.40 - e ? 0.197 ? 0.220 ? 5.00 ? 5.60 c 0.285 0.375 7.20 9.50 notes : 1.controlling dimension : millimeters. 2.maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material. 3.if there is any question with packing specification or packing method, please c ontact your local cystek sales office. material : ? lead : axial leads, solderable per mil-std-202, method 208 guaranteed. ? mold compound : epoxy resin family, flammability solid burning class: ul94v-0 important notice: ? all rights are reserved. reproduction in whole or in part is prohibited without the prior written approval of cystek. ? cystek reserves the right to make changes to its products without notice. ? cystek semiconductor products are not warranted to be suitable for use in life-support applications, or systems. ? cystek assumes no liability for any consequence of customer pr oduct design, infringement of pat ents, or application assistance .
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