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.

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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