2N4909 PNP Transistor

The 2N4909 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N4909 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N4909 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 2N4909 transistor as follows.

2N4909 Transistor Specification

Transistor Code		2N4909
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	150W
Collector-Base Voltage (Maximum)	VCB	80V
Collector-Emitter Voltage (Maximum)	VCE	80V
Collector Current (Maximum)	IC	10A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	2MHz
Collector Capacitance	CC	600pF

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