BD743D NPN Transistor

The BD743D is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD743D transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD743D 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 BD743D transistor as follows.

BD743D Transistor Specification

Transistor Code		BD743D
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO220
Collector Power Dissipation (Maximum)	PC	90W
Collector-Base Voltage (Maximum)	VCB	130V
Collector-Emitter Voltage (Maximum)	VCE	120V
Collector Current (Maximum)	IC	15A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	5MHz

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