3N78 NPN Transistor

The 3N78 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 3N78 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 3N78 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 3N78 transistor as follows.

3N78 Transistor Specification

Transistor Code		3N78
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO72
Collector Power Dissipation (Maximum)	PC	0.3W
Collector-Base Voltage (Maximum)	VCB	40V
Collector Current (Maximum)	IC	0.02A
Operating Junction Temperature (Maximum)	TJ	175°C
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	30MHz
Collector Capacitance	CC	8pF

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