BFQ31A NPN Transistor

The BFQ31A is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFQ31A transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFQ31A 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 BFQ31A transistor as follows.

BFQ31A Transistor Specification

Transistor Code		BFQ31A
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT23
Transistor SMD Code		S4
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	15V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	3V
Forward Current Transfer Ratio (hFE Value)		100
Transition Frequency	FT	600MHz
Collector Capacitance	CC	1.7pF

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