2N1428 PNP Transistor

The 2N1428 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N1428 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N1428 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 2N1428 transistor as follows.

2N1428 Transistor Specification

Transistor Code		2N1428
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO1
Collector Power Dissipation (Maximum)	PC	0.1W
Collector-Base Voltage (Maximum)	VCB	6V
Collector-Emitter Voltage (Maximum)	VCE	6V
Collector Current (Maximum)	IC	0.05A
Operating Junction Temperature (Maximum)	TJ	140°C
Forward Current Transfer Ratio (hFE Value)		12
Transition Frequency	FT	16MHz
Collector Capacitance	CC	14pF

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