BFT91 NPN Transistor

The BFT91 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFT91 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFT91 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 BFT91 transistor as follows.

BFT91 Transistor Specification

Transistor Code		BFT91
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO128
Collector Power Dissipation (Maximum)	PC	4W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	30V
Collector Current (Maximum)	IC	0.35A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	100MHz
Collector Capacitance	CC	4pF

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