jiangsu changjiang elec tron ics technology co., ltd to -92 plastic-encapsulate transistors b f 420 transistor ( npn) bf422 fea t ures z low feedback cap acitance. z npn transistors in a to -92 plastic package. pnp complements: bf421 and bf423 z class-b video output stag es in colour television and professional monitor equipment. maximum ratings (t a =25 unless other w ise noted) symb o l parameter BF420 bf422 unit v cbo coll ector-bas e voltage 300 250 v v ce o coll ector-emitter v oltage 300 250 v v eb o emitter-base v o ltage 5 v i c coll ector curr ent -continuous 100 ma p c coll ector po wer dissipation 0. 830 w rthja thermal res i stance from junction to ambient 151 /w t j juncti on temp erature 150 t st g s t orage temperature range - 5 5 ~ 150 to - 92 1. emitter 2.collector 3. base www.cj-elec.com 1 e,aug,2017 ordering inform a t ion part nu mb er pack ag e packin g meth o d pack qu an tity t o-92 bulk 1000pcs/bag t o -92 t ape 2000pcs/box BF420 BF420 -ta t o -92 bulk 1000pcs/bag t o -92 t ape 2000pcs/box bf422 bf422 -ta solid dot=green molding compound device, ///, . BF420,bf422,! - . if none,the normal device 1 BF420 xxx 1 bf422 xxx equivalent circuit
www.cj-elec.com e,aug,2017 a t =25 unless otherwise specified parameter symbol test conditions min max unit collector-base breakdown voltage BF420 bf422 v (br)cbo i c =100 a, i e =0 300 250 v collector-emitter b reakdown voltage BF420 bf422 v (br)ceo i c = 1ma , i b =0 300 250 v emitter-base b reakdown voltage v (br)ebo i e =100 a, i c =0 5 v collector cut-o ff current i cbo v cb =200v, i e =0 0.01 a emitter cut-off current i ebo v eb =5v, i c =0 0.05 a dc cu rrent gain h fe v ce =20v, i c =25ma 50 collector-emitter satur ation voltage v ce (sa t ) i c =30ma, i b = 5ma 0.6 v trans ition frequency f t v ce =10v, i c = 10ma f= 100mhz 60 mhz feedback capacit ance c re v ce =30v,i c =0,f=1mhz 1.6 pf
min max min max a 3.300 3 .700 0.130 0.146 a1 1.100 1.400 0.043 0.055 b 0.380 0.550 0.015 0.022 c 0.360 0.510 0.014 0.020 d 4. 300 4.700 0.169 0.185 d1 3.430 0.135 e 4.300 4.700 0.169 0.185 e e1 2.440 2.640 0.096 0.104 l 14.100 14.500 0.555 0.571 1.600 0.063 h 0.000 0.380 0.000 0.015 symbol dimensions in millimeters dimensions in inches 1.270 typ 0.050 typ to-92 package outline dimensions to-92 suggested pad layout www.cj-elec.com 3 e,aug,2017
to-92 7 d s h d q g 5 h h o z z z f m h o h f f r p 4 e,aug,2017
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