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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.

Circuit diagram symbol of the KN3903S transistor

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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