2SD644 NPN Transistor

The 2SD644 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SD644 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SD644 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 2SD644 transistor as follows.

2SD644 Transistor Specification

Transistor Code		2SD644
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	300W
Collector-Base Voltage (Maximum)	VCB	600V
Collector-Emitter Voltage (Maximum)	VCE	450V
Collector Current (Maximum)	IC	60A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		150

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