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MQ5857 PNP Transistor

The MQ5857 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the MQ5857 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MQ5857 transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the MQ5857 transistor as follows.

Circuit diagram symbol of the MQ5857 transistor

MQ5857 Transistor Specification

Transistor Code MQ5857
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package TO86
Collector Power Dissipation (Maximum) PC 0.75W
Collector-Base Voltage (Maximum) VCB 80V
Collector-Emitter Voltage (Maximum) VCE 80V
Collector Current (Maximum) IC 1A
Operating Junction Temperature (Maximum) TJ 125°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 50
Transition Frequency FT 15MHz
Collector Capacitance CC 100pF

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