smd type transistors 1 www.kexin.com.cn pnp switching transistor PXT3906 features high current (max. 100 ma) low voltage (max. 40 v). absolute maximum ratings ta = 25 parameter symbol rating unit collector-base voltage v cbo -40 v collector-emitter voltage v ceo -40 v emitter-base voltage v ebo -6 v collector current i c -100 ma peak collector current i cm -200 ma peak base current i bm -100 ma p tot *1 *2 *3 0.45 0.65 0.8 storage temperature t stg -65to+150 junction temperature t j 150 operating ambient temperature r amb -65to+150 r th(j-a) *1 *2 *3 278 192 156 thermal resistance from junction to soldering point r th(j-s) 80 k/w *3 device mounted on a printed-circuit board, single-sided copper, tin-plated and mounting - - ---- pad for collector 6 cm 2 . w k/w *1 device mounted on a printed-circuit board, single-sided copper, tin-plated and standard - -- ---- footprint. *2 device mounted on a printed-circuit board, single-sided copper, tin-plated and mounting - -- pad for collector 1 cm 2 . total power dissipation thermal resistance from junction to ambient
2 smd type transistors www.kexin.com.cn electrical characteristics ta = 25 parameter symbol testconditons min typ max unit collector cutoff current i cbo i e =0;v cb = -30 v -50 na emitter cutoff current i ebo i c =0;v eb =-6v -50 na v ce =-1v;i c =-0.1ma 60 v ce =-1v;i c =-1ma 80 dc current gain h fe v ce =-1v,i c = -10 ma 100 300 v ce =-1v;i c = -50 ma 60 v ce =-1v;i c =-100ma 30 i c =-10ma;i b =-1ma -250 mv i c =-50ma;i b =-5ma -400 mv i c =-10ma;i b =-1ma -650 -850 mv i c =-50ma;i b =-5ma -950 mv collector capacitance c c i e =i e =0;v cb =-5v;f=1mhz 4.5 pf emitter capacitance c e i c =i c =0;v eb =-500mv;f=1mhz 10 pf transition frequency f t i c =-10ma;v ce = -20 v; f = 100 mhz 250 mhz noise figure f i c =-100a;v ce =-5v;r s =2k; f = 10 hz to 15.7 khz 4db turn-on time t on 65 ns delay time t d 35 ns rise time t r 35 ns turn-off time t off 300 ns storage time t s 225 ns fall time t f 75 ns v cesat i con =-10ma;i bon =-1ma; i boff =1ma v besat collector-emitter saturation voltage base-emitter saturation voltage PXT3906 marking marking 2a
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