smd type ic smd type transistors 1 emitter 2 base 3 collector 2SD1949 features high current.(i c =5a) low saturation voltage, typically v ce(sat) =0.1v at i c /i b =150ma / 15ma. absolute maximum ratings ta = 25 parameter symbol rating unit collector-base voltage v cbo 50 v collector-emitter voltage v ceo 50 v emitter-base voltage v ebo 5v collector current i c 0.5 a collector power dissipation p c 0.2 w junction temperature tj 150 storage temperature t stg -55to+150 electrical characteristics ta = 25 parameter symbol testconditons min typ max unit collector-base breakdown voltage bv cbo i c =1ma 50 v collector-emitter breakdown voltage bv ceo v cb =30v 50 v emitter-base breakdown voltage bv ebo v eb =4v 5 v collector cutoff current i cbo v ce /i c =3v/0.01a 0.5 a emitter cutoff current i ebo v ce =5v , i e = -20ma , f=100mhz 0.5 a dc current transfer ratio h fe v cb =10v , i e =0a , f=1mhz 120 390 collector-emitter saturation voltage v ce(sat) i c =100a 0.4 v output capacitance f t i e =100a 250 mhz transition frequency c ob i c /i b =150ma/15ma 6.5 pf h fe classification marking rank q r h fe 120 270 180 390 y sales@twtysemi.com 1 of 1 http://www.twtysemi.com smd type ic smd type transistors smd type smd type smd type ic smd type smd type ic smd type smd type smd type ic smd type smd type smd type product specification 4008-318-123
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