BCW31 surface mount npn silicon transistor description: the central semiconductor BCW31, manufactured in the popular sot-23 surface mount package, is an npn general purpose switching and amplification transistor, suitable for applications requiring collector currents up to 100ma. marking code: d1 maximum ratings: (t a =25c) symbol units collector-base voltage v cbo 30 v collector-emitter voltage v ceo 20 v emitter-base voltage v ebo 5.0 v continuous collector current i c 100 ma power dissipation p d 350 mw operating and storage junction temperature t j , t stg -65 to +150 c thermal resistance ja 357 c/w electrical characteristics: (t a =25c) symbol test conditions min max units bv cbo i c =10a 30 v bv ceo i c =2.0ma 20 v bv ebo i e =10a 5.0 v v ce(sat) i c =10ma, i b =0.5ma 0.25 v v be(on) v ce =5.0v, i c =2.0ma 0.55 0.70 v h fe v ce =5.0v, i c =2.0ma 110 220 c ob v cb =10v, i e =0, f=1.0mhz 4.0 pf nf i c =0.2ma, v ce =5.0v, r s =2.0k, f=1.0mhz, bw=200hz 10 db sot-23 case r3 (20-november 2009) www.centralsemi.com
BCW31 surface mount npnsilicon transistor sot-23 case - mechanical outline lead code: 1) base 2) emitter 3) collector marking code: d1 www.centralsemi.com r3 (20-november 2009)
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