BF423A PNP Transistor

The BF423A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BF423A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF423A transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the BF423A transistor as follows.

BF423A Transistor Specification

Transistor Code		BF423A
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO92
Collector Power Dissipation (Maximum)	PC	0.8W
Collector-Base Voltage (Maximum)	VCB	250V
Collector-Emitter Voltage (Maximum)	VCE	250V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	70MHz
Collector Capacitance	CC	5pF

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