BF421 (4) datasheet pdf

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Updated

Oct 22, 2025, 03:25 PM

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BF421 (4) datasheet pdf

Datasheet Information

Pages: 2

ambient temperature unless otherwise specified .098 (2.5) max .

∅ .022 (0.55) 4/98 SymbolValueUnit Collector-Base VoltageBF421 BF423 –V CBO –V CBO 300 250 V V Collector-Emitter VoltageBF423–V CEO 250V Collector-Emitter VoltageBF421–V CER 300V Emitter-Base Voltage–V EBO 5V Collector Current–I C 50mA Peak Collector Current–I CM 100mA Power Dissipation at T amb = 25 °CP tot 830 1) mW Junction TemperatureT j 150°C Storage Temperature RangeT S –65 to +150°C 1) Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case. PNP Silicon Epitaxial Transistors especially suited for application in class-B video output stages of TV receivers and monitors. As complementary types, the NPN tran- sistors BF420 and BF422 are recom- mended. ♦ ♦ BF421, BF423

Specifications
FEATURES MECHANICAL DATA Case: TO-92 Plastic Package Weight: approx. 0.18 g MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Small Signal Transistors (PNP) C B E .181 (4.6) min. .492 (12.5) .181 (4.6) .142 (3.6) Dimensions in inches and (millimeters) TO-92 Ratings at 25 °C

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