2SC139 NPN Transistor

The 2SC139 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SC139 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SC139 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 2SC139 transistor as follows.

2SC139 Transistor Specification

Transistor Code		2SC139
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO33-1
Collector Power Dissipation (Maximum)	PC	0.8W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	30V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	200MHz
Collector Capacitance	CC	8pF

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