2N3943 NPN Transistor

The 2N3943 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N3943 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N3943 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 2N3943 transistor as follows.

2N3943 Transistor Specification

Transistor Code		2N3943
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO77-1
Collector Power Dissipation (Maximum)	PC	0.75W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	45V
Collector Current (Maximum)	IC	0.05A
Operating Junction Temperature (Maximum)	TJ	200°C
Forward Current Transfer Ratio (hFE Value)		400
Transition Frequency	FT	200MHz
Collector Capacitance	CC	6pF

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