BD138-25 PNP Transistor

The BD138-25 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BD138-25 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD138-25 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 BD138-25 transistor as follows.

BD138-25 Transistor Specification

Transistor Code		BD138-25
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO-126
Collector Power Dissipation (Maximum)	PC	12.5W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	60V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		160

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