AF149 PNP Transistor

The AF149 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the AF149 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The AF149 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 AF149 transistor as follows.

AF149 Transistor Specification

Transistor Code		AF149
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO7
Collector Power Dissipation (Maximum)	PC	0.08W
Collector-Base Voltage (Maximum)	VCB	24V
Collector-Emitter Voltage (Maximum)	VCE	24V
Collector Current (Maximum)	IC	0.01A
Operating Junction Temperature (Maximum)	TJ	75°C
Forward Current Transfer Ratio (hFE Value)		100
Transition Frequency	FT	50MHz

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