BF158 NPN Transistor

The BF158 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF158 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF158 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 BF158 transistor as follows.

BF158 Transistor Specification

Transistor Code		BF158
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO106
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	12V
Collector Current (Maximum)	IC	0.005A
Operating Junction Temperature (Maximum)	TJ	125°C
Emitter-Base Voltage (Maximum)	VEB	2V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	600MHz
Collector Capacitance	CC	0.2pF

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