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MQ2221AR NPN Transistor

The MQ2221AR is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MQ2221AR transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MQ2221AR 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 MQ2221AR transistor as follows.

Circuit diagram symbol of the MQ2221AR transistor

MQ2221AR Transistor Specification

Transistor Code MQ2221AR
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO86
Collector Power Dissipation (Maximum) PC 0.5W
Collector-Base Voltage (Maximum) VCB 75V
Collector-Emitter Voltage (Maximum) VCE 40V
Collector Current (Maximum) IC 0.8A
Operating Junction Temperature (Maximum) TJ 175°C
Emitter-Base Voltage (Maximum) VEB 6V
Forward Current Transfer Ratio (hFE Value) 40
Transition Frequency FT 300MHz
Collector Capacitance CC 8pF

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