BF389B NPN Transistor

The BF389B is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF389B transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF389B 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 BF389B transistor as follows.

BF389B Transistor Specification

Transistor Code		BF389B
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO5
Collector Power Dissipation (Maximum)	PC	0.6W
Collector-Base Voltage (Maximum)	VCB	220V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	60MHz
Collector Capacitance	CC	3.5pF

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