inchange semiconductor isc product specification isc silicon pnp power transistor bd944/946/948 description dc current gain- : h fe = 85(min)@ i c = -500ma complement to type bd943/945/947 applications designed for use in audio output stages and general purpose amplifier applications. absolute maximum ratings(t a =25 ) symbol parameter value unit bd944 -22 BD946 -32 v cbo collector-base voltage bd948 -45 v bd944 -22 BD946 -32 v ceo collector-emitter voltage bd948 -45 v v ebo emitter-base voltage -5 v i c collector current-continuous -5 a i cm collector current-peak -8 a i b b base current-continuous -1 a p c collector power dissipation @ t c =25 40 w t j junction temperature 150 t stg storage temperature range -65~150 thermal characteristics symbol parameter max unit r th j-c thermal resistance,junction to case 3.12 /w r th j-a thermal resistance,junction to ambient 70 /w isc website www.iscsemi.cn
inchange semiconductor isc product specification isc silicon pnp power transistor bd944/946/948 electrical characteristics t c =25 unless otherwise specified symbol parameter conditions min typ. max unit bd944 -22 BD946 -32 v ceo(sus) collector-emitter sustaining voltage bd948 i c = -100ma ; i b = 0 -45 v bd944/946 i c = -2a; i b = -0.2a b -0.5 v ce( sat ) collector-emitter saturation voltage bd948 i c = -3a; i b = -0.3a b -0.7 v bd944/946 i c = -2a; v ce = -1v -1.1 v be( on ) base-emitter on voltage bd948 i c = -3a; v ce = -1v -1.3 v i cbo collector cutoff current v cb = v cbomax ; i e = 0 v cb = v cbomax ; i e = 0,t j =150 -0.05 -1 ma bd944 v ce = -15v; i b = 0 b BD946 v ce = -20v; i b = 0 b i ceo collector cutoff current bd948 v ce = -25v; i b = 0 b -0.1 ma i ebo emitter cutoff current v eb = -5v; i c = 0 -0.2 ma h fe-1 dc current gain i c = -10ma ; v ce = -5v 25 h fe-2 dc current gain i c = -500ma ; v ce = -1v 85 475 bd944/946 50 h fe-3 dc current gain bd948 i c = -2a ; v ce = -1v 40 h fe-4 dc current gain-- only for bd948 i c = -3a ; v ce = -1v 30 f t current-gain?bandwidth product i c = -250ma ; v ce = -1v 3 mhz isc website www.iscsemi.cn 2
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