BFQ645 NPN Transistor

The BFQ645 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFQ645 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFQ645 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 BFQ645 transistor as follows.

BFQ645 Transistor Specification

Transistor Code		BFQ645
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT89
Collector Power Dissipation (Maximum)	PC	0.1W
Collector-Base Voltage (Maximum)	VCB	12V
Collector Current (Maximum)	IC	0.04A
Operating Junction Temperature (Maximum)	TJ	175°C
Forward Current Transfer Ratio (hFE Value)		15
Transition Frequency	FT	9000MHz

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