BF845 NPN Transistor

The BF845 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF845 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF845 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 BF845 transistor as follows.

BF845 Transistor Specification

Transistor Code		BF845
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO92
Collector Power Dissipation (Maximum)	PC	0.625W
Collector-Base Voltage (Maximum)	VCB	350V
Collector-Emitter Voltage (Maximum)	VCE	400V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	50MHz

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