BD278A NPN Transistor

The BD278A is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD278A transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD278A 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 BD278A transistor as follows.

BD278A Transistor Specification

Transistor Code		BD278A
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO220
Collector Power Dissipation (Maximum)	PC	75W
Collector-Base Voltage (Maximum)	VCB	55V
Collector-Emitter Voltage (Maximum)	VCE	45V
Collector Current (Maximum)	IC	10A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		30
Transition Frequency	FT	0.8MHz

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