3DK21 NPN Transistor

The 3DK21 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 3DK21 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 3DK21 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 3DK21 transistor as follows.

3DK21 Transistor Specification

Transistor Code		3DK21
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	350W
Collector-Base Voltage (Maximum)	VCB	250V
Collector-Emitter Voltage (Maximum)	VCE	200V
Collector Current (Maximum)	IC	40A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	7V
Forward Current Transfer Ratio (hFE Value)		10
Transition Frequency	FT	8MHz

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