DK55A NPN Transistor

The DK55A is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the DK55A transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The DK55A 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 DK55A transistor as follows.

DK55A Transistor Specification

Transistor Code		DK55A
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO251
Collector Power Dissipation (Maximum)	PC	53W
Collector-Base Voltage (Maximum)	VCB	700V
Collector-Emitter Voltage (Maximum)	VCE	400V
Collector Current (Maximum)	IC	4A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	9V
Forward Current Transfer Ratio (hFE Value)		15
Transition Frequency	FT	5MHz

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