BF311 NPN Transistor

The BF311 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF311 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF311 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 BF311 transistor as follows.

BF311 Transistor Specification

Transistor Code		BF311
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO226
Collector Power Dissipation (Maximum)	PC	0.35W
Collector-Base Voltage (Maximum)	VCB	35V
Collector-Emitter Voltage (Maximum)	VCE	25V
Collector Current (Maximum)	IC	0.04A
Operating Junction Temperature (Maximum)	TJ	140°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	375MHz
Collector Capacitance	CC	0.7pF

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