2N122 NPN Transistor

The 2N122 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N122 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N122 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 2N122 transistor as follows.

2N122 Transistor Specification

Transistor Code		2N122
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		MS7
Collector Power Dissipation (Maximum)	PC	3.5W
Collector-Base Voltage (Maximum)	VCB	120V
Collector Current (Maximum)	IC	0.14A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	1V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	0.1MHz

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