AF251 PNP Transistor

The AF251 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the AF251 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The AF251 transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the AF251 transistor as follows.

AF251 Transistor Specification

Transistor Code		AF251
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		X09
Collector Power Dissipation (Maximum)	PC	0.09W
Collector-Base Voltage (Maximum)	VCB	15V
Collector-Emitter Voltage (Maximum)	VCE	15V
Collector Current (Maximum)	IC	0.01A
Operating Junction Temperature (Maximum)	TJ	90°C
Forward Current Transfer Ratio (hFE Value)		10
Transition Frequency	FT	400MHz

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