KST20 NPN Transistor

The KST20 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the KST20 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The KST20 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.

Circuit diagram symbol of the KST20 transistor as follows.

KST20 Transistor Specification

Transistor Code		KST20
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT23
Transistor SMD Code		1C
Collector Power Dissipation (Maximum)	PC	0.35W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	40V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	125MHz
Collector Capacitance	CC	4pF

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