MQ5449 NPN Transistor

The MQ5449 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MQ5449 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MQ5449 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 MQ5449 transistor as follows.

MQ5449 Transistor Specification

Transistor Code		MQ5449
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO86
Collector Power Dissipation (Maximum)	PC	0.36W
Collector-Base Voltage (Maximum)	VCB	50V
Collector-Emitter Voltage (Maximum)	VCE	30V
Collector Current (Maximum)	IC	0.8A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		100
Transition Frequency	FT	100MHz
Collector Capacitance	CC	12pF

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