2SA428 PNP Transistor

The 2SA428 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SA428 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SA428 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 2SA428 transistor as follows.

2SA428 Transistor Specification

Transistor Code		2SA428
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO44-2
Collector Power Dissipation (Maximum)	PC	0.1W
Collector-Base Voltage (Maximum)	VCB	20V
Collector Current (Maximum)	IC	0.015A
Operating Junction Temperature (Maximum)	TJ	75°C
Forward Current Transfer Ratio (hFE Value)		80
Transition Frequency	FT	20MHz
Collector Capacitance	CC	5pF

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