2N2278 PNP Transistor

The 2N2278 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N2278 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N2278 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 2N2278 transistor as follows.

2N2278 Transistor Specification

Transistor Code		2N2278
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO18
Collector Power Dissipation (Maximum)	PC	0.15W
Collector-Base Voltage (Maximum)	VCB	15V
Collector-Emitter Voltage (Maximum)	VCE	15V
Collector Current (Maximum)	IC	0.05A
Operating Junction Temperature (Maximum)	TJ	140°C
Emitter-Base Voltage (Maximum)	VEB	15V
Forward Current Transfer Ratio (hFE Value)		10
Transition Frequency	FT	7.6MHz
Collector Capacitance	CC	9pF

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