2SA1291 PNP Transistor

The 2SA1291 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SA1291 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SA1291 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 2SA1291 transistor as follows.

2SA1291 Transistor Specification

Transistor Code		2SA1291
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO220
Collector Power Dissipation (Maximum)	PC	40W
Collector-Base Voltage (Maximum)	VCB	80V
Collector-Emitter Voltage (Maximum)	VCE	60V
Collector Current (Maximum)	IC	10A
Operating Junction Temperature (Maximum)	TJ	120°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		70
Transition Frequency	FT	100MHz

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