2SA1812 PNP Transistor

The 2SA1812 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SA1812 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SA1812 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 2SA1812 transistor as follows.

2SA1812 Transistor Specification

Transistor Code		2SA1812
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		MPT3
Transistor SMD Code		AJ
Collector Power Dissipation (Maximum)	PC	2W
Collector-Base Voltage (Maximum)	VCB	400V
Collector-Emitter Voltage (Maximum)	VCE	400V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	7V
Forward Current Transfer Ratio (hFE Value)		82
Transition Frequency	FT	12MHz
Collector Capacitance	CC	18pF

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