MQ3903R NPN Transistor

The MQ3903R is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MQ3903R transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MQ3903R 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 MQ3903R transistor as follows.

MQ3903R Transistor Specification

Transistor Code		MQ3903R
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO86
Collector Power Dissipation (Maximum)	PC	0.31W
Collector-Base Voltage (Maximum)	VCB	60V
Collector-Emitter Voltage (Maximum)	VCE	40V
Collector Current (Maximum)	IC	0.2A
Operating Junction Temperature (Maximum)	TJ	135°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		80
Transition Frequency	FT	250MHz
Collector Capacitance	CC	4pF

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