2S123 PNP Transistor

The 2S123 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2S123 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2S123 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 2S123 transistor as follows.

2S123 Transistor Specification

Transistor Code		2S123
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO3
Collector Power Dissipation (Maximum)	PC	5.5W
Collector-Base Voltage (Maximum)	VCB	32V
Collector Current (Maximum)	IC	2.5A
Operating Junction Temperature (Maximum)	TJ	75°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	0.5MHz

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