2SD178B NPN Transistor

The 2SD178B is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SD178B transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SD178B 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 2SD178B transistor as follows.

2SD178B Transistor Specification

Transistor Code		2SD178B
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Germanium(GE)
Package		TO1
Collector Power Dissipation (Maximum)	PC	0.225W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	60V
Collector Current (Maximum)	IC	0.3A
Operating Junction Temperature (Maximum)	TJ	125°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	1MHz

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