BF457 NPN Transistor

The BF457 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF457 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF457 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.

Circuit diagram symbol of the BF457 transistor as follows.

BF457 Transistor Specification

Transistor Code		BF457
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO126
Collector Power Dissipation (Maximum)	PC	6W
Collector-Base Voltage (Maximum)	VCB	160V
Collector-Emitter Voltage (Maximum)	VCE	160V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		26
Transition Frequency	FT	40MHz

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