2N449 NPN Transistor

The 2N449 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N449 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N449 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 2N449 transistor as follows.

2N449 Transistor Specification

Transistor Code		2N449
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Germanium(GE)
Package		TO22
Collector Power Dissipation (Maximum)	PC	0.065W
Collector-Base Voltage (Maximum)	VCB	15V
Collector-Emitter Voltage (Maximum)	VCE	15V
Collector Current (Maximum)	IC	0.02A
Operating Junction Temperature (Maximum)	TJ	85°C
Forward Current Transfer Ratio (hFE Value)		35
Transition Frequency	FT	3MHz

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