BFY91 NPN Transistor

The BFY91 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFY91 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFY91 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 BFY91 transistor as follows.

BFY91 Transistor Specification

Transistor Code		BFY91
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO77
Collector Power Dissipation (Maximum)	PC	0.6W
Collector-Base Voltage (Maximum)	VCB	45V
Collector-Emitter Voltage (Maximum)	VCE	45V
Collector Current (Maximum)	IC	0.03A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		60
Transition Frequency	FT	30MHz
Collector Capacitance	CC	4pF

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