bc635 / BC637 / bc639 npn silicon epitaxial planar transistor medium power transistors for driver stages of audio / video amplifiers absolute maximum ratings (t a = 25 o c) parameter symbol value unit collector base voltage bc635 BC637 bc639 v cbo 45 60 100 v collector emitter voltage bc635 BC637 bc639 v ceo 45 60 80 v emitter base voltage v ebo 5 v collector current i c 1 a peak collector current i cm 1.5 a base current i b 100 ma peak base current i bm 200 ma power dissipation p tot 830 mw junction temperature t j 150 o c storage temperature range t s - 55 to + 150 o c 1.emitter 2.collector 3.base to-92 plastic package weight approx. 0.19g
bc635 / BC637 / bc639 characteristics at t a = 25 o c parameter symbol min. max. unit dc current gain at v ce = 2 v, i c = 5 ma at v ce = 2 v, i c = 150 ma at v ce = 2 v, i c = 500 ma bc635 BC637 / bc639 h fe h fe h fe h fe 40 40 40 25 - 250 160 - - - - - collector cutoff current at v cb = 30 v i cbo - 100 na emitter cutoff current at v eb = 5 v i ebo - 100 na collector base breakdown voltage at i c = 100 a bc635 BC637 bc639 v (br)cbo 45 60 100 - - - v collector emitter breakdown voltage at i c = 10 ma bc635 BC637 bc639 v (br)ceo 45 60 80 - - - v emitter base breakdown voltage at i e = 10 a v (br)ebo 5 - v collector emitter saturation voltage at i c = 500 ma, i b = 50 ma v ce(sat) - 0.5 v base emitter voltage at v ce = 2 v, i c = 500 ma v be - 1 v gain bandwidth product at v ce = 5 v, i c = 50 ma, f = 100 mhz f t 100 - mhz
bc635 / BC637 / bc639 collector emitter voltage v ce (v) i b =0.2 m a 0.4ma 0.6ma 1.6ma static characteristics 1.8ma 0.8ma 1.0ma 1.2ma 1.4ma c o l l e c t o r c u r r e n t i c ( m a ) c o l l e c t o r c u r r e n t i c ( m a ) base emitter saturation voltage collector emitter saturation voltage s a t u r a t i o n v o l t a g e v c e ( s a t ) , v b e ( s a t ) ( v ) d c c u r r e n t g a i n h f e collector current i c (ma) dc current gain c o l l e c t o r c u r r e n t i c ( m a ) base emitter voltage v be (v) base emitter on voltage c a p a c i t a n c e c o b ( p f ) collector base voltage v cb (v) collector output capacitance
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