DT4121 NPN Transistor

The DT4121 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the DT4121 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The DT4121 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 DT4121 transistor as follows.

DT4121 Transistor Specification

Transistor Code		DT4121
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	30W
Collector-Base Voltage (Maximum)	VCB	80V
Collector-Emitter Voltage (Maximum)	VCE	60V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	140°C
Forward Current Transfer Ratio (hFE Value)		30
Transition Frequency	FT	0.5MHz

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