KN3903S NPN Transistor

The KN3903S is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the KN3903S transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The KN3903S 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 KN3903S transistor as follows.

KN3903S Transistor Specification

Transistor Code		KN3903S
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT23
Transistor SMD Code		ZRA
Collector Power Dissipation (Maximum)	PC	0.35W
Collector-Emitter Voltage (Maximum)	VCE	40V
Collector Current (Maximum)	IC	0.2A
Forward Current Transfer Ratio (hFE Value)		50

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