KD138A PNP Transistor

The KD138A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the KD138A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The KD138A 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 KD138A transistor as follows.

KD138A Transistor Specification

Transistor Code		KD138A
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		SOT23
Collector Power Dissipation (Maximum)	PC	12W
Collector-Emitter Voltage (Maximum)	VCE	80V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	50MHz

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