TK40 PNP Transistor

The TK40 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the TK40 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The TK40 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 TK40 transistor as follows.

TK40 Transistor Specification

Transistor Code		TK40
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		X18
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	20V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	75°C
Emitter-Base Voltage (Maximum)	VEB	40V
Forward Current Transfer Ratio (hFE Value)		17
Transition Frequency	FT	1MHz

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