MRF449 NPN Transistor

The MRF449 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MRF449 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MRF449 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 MRF449 transistor as follows.

MRF449 Transistor Specification

Transistor Code		MRF449
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		M174
Collector Power Dissipation (Maximum)	PC	60W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	20V
Collector Current (Maximum)	IC	3A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		10

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