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WEJ ELECTRONIC CO.,LTD BF421 TRANSISTOR (PNP) BF423
FEATURES
P CM: 0 . 8 3 W ( T a m b = 2 5 ℃ ) Collector current I CM: -100 mA Collector-base voltage V (BR)CBO: B F 4 2 1 - 3 0 0 V BF423 -250 V Operating and storage junction temperature range T J, Tstg: -55 to +150 ELECTRICAL CHARACTERISTICS (Tamb=25 unless otherwise specified) Parameter Symbol Test conditions MIN TYP MAX UNIT Collector-base breakdown voltage BF421 BF423 VCBO Ic=-100µA , I E=0 -300 -250 V Collector-emitter breakdown voltage BF421 B F 4 2 3 VCEO I C= -1mA , IB=0 -300 -250 V Emitter-base breakdown voltage VEBO I E=-100µA, IC=0 -5 V Collector cut-off current ICBO V CB=-200V, IE=0 -0.01 µA Emitter cut-off current IEBO V EB=-5V, IC=0 -0.05 µA DC current gain hFE VCE=-20V, IC=-25mA 50 Collector-emitter saturation voltage VCE(sat) I C=-30 mA, IB=- 5mA -0.6 V Transition frequency fT VCE=-10V, IC= -10mA 60 MHz 1 2 3 TO-92 1. EMITTER 2. COLLECTOR 3. BASE B F421/BF423 Http:// www.wej.cn E-mail:wej@yongerjia.com WEJ ELECTRONIC CO. RoHS