BFR21 NPN Transistor

The BFR21 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFR21 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFR21 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 BFR21 transistor as follows.

BFR21 Transistor Specification

Transistor Code		BFR21
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO39
Collector Power Dissipation (Maximum)	PC	0.8W
Collector-Base Voltage (Maximum)	VCB	120V
Collector-Emitter Voltage (Maximum)	VCE	70V
Collector Current (Maximum)	IC	1A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	7V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	60MHz
Collector Capacitance	CC	20pF

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