BF643W NPN Transistor

The BF643W is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF643W transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF643W 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 BF643W transistor as follows.

BF643W Transistor Specification

Transistor Code		BF643W
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO237
Collector Power Dissipation (Maximum)	PC	0.9W
Collector-Base Voltage (Maximum)	VCB	200V
Collector-Emitter Voltage (Maximum)	VCE	200V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	50MHz
Collector Capacitance	CC	4pF

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