cystech electronics corp. spec. no. : c235a3 issued date : 2004.02.24 revised date : 2004.10.18 page no. : 1/3 BF423A3/s cystek product specification pnp epitaxial planar transistor BF423A3/s description ? pnp high voltage transistors in a to-92 plastic package. ? complementary to bf422a3/s. ? pb-free package is available features ? low feedback capacitance. applications ? class-b video output stages in color tele vision and professional monitor equipment. symbol outline absolute maximum ratings (ta=25 c) parameter symbol conditions min max unit collector-base voltage v cbo open emitter - -250 v collector-emitter voltage v ceo open base - -250 v emitter-base voltage v ebo open collector - -5 v collector current (dc) i c - -50 ma peak collector current i cm - -100 ma peak base current i bm - -50 ma power dissipation pd tamb 25 , note - 830 mw junction temperature tj - 150 c storage temperature tstg -65 +150 c operating ambient temperature tamb -65 +150 c note : transistor mounted on a printed-circuit board. BF423A3/s to-92 b base c collector e emitter e c b
cystech electronics corp. spec. no. : c235a3 issued date : 2004.02.24 revised date : 2004.10.18 page no. : 2/3 BF423A3/s cystek product specification characteristics (ta=25 c) symbol min. typ. max. unit test conditions bv cbo -250 - - v i c =-100a, i e =0 bv ceo -250 - - v i c =-1ma, i b =0 bv ebo -5 - - v i e =-10a, i c =0 - - -10 na v cb =-200v, i e =0 i cbo - - -10 a i e =0, v cb =-200v, tj=150 i ebo - - -50 na v eb =-5v, i c =0 *v ce(sat) - - -0.6 v i c =-30ma, i b =-5ma *h fe 50 - - - v ce =-20v, i c =-25ma cre - - 1.6 pf i c =i c =0, v ce =-30v, f=1mhz f t 60 - - mhz v ce =-10v, i c =-10ma, f=100mhz *pulse test: pulse width 380 s, duty cycle 2% thermal characteristics symbol parameter conditions value unit r thja thermal resistance from junction to ambient note 150 k/w note : transistor mounted on a printed-circuit board. ordering information device package shipping BF423A3 to-92 2000 pcs / tape & box BF423A3s to-92 (pb-free) 2000 pcs / tape & box
cystech electronics corp. spec. no. : c235a3 issued date : 2004.02.24 revised date : 2004.10.18 page no. : 3/3 BF423A3/s cystek product specification to-92 dimension *: typical inches millimeters inches millimeters dim min. max. min. max. dim min. max. min. max. a 0.1704 0.1902 4.33 4.83 g 0.0142 0.0220 0.36 0.56 b 0.1704 0.1902 4.33 4.83 h - * 0.1000 - * 2.54 c 0.5000 - 12.70 - i - * 0.0500 - * 1.27 d 0.0142 0.0220 0.36 0.56 1 - * 5 - * 5 e - * 0.0500 - * 1.27 2 - * 2 - * 2 f 0.1323 0.1480 3.36 3.76 3 - * 2 - * 2 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: 42 alloy ; solder plating ? 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 . bf423 marking: 3 1 a d b c i 1 e f 2 3 g h 2 st y le: pin 1.emitter 2.collector 3.base 3-lead to-92 plastic package cystek packa g e code: a 3
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