BC857A PNP Transistor

The BC857A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BC857A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BC857A 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 BC857A transistor as follows.

BC857A Transistor Specification

Transistor Code		BC857A
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		SOT23
Transistor SMD Code		3E_3E-_3Ep_3Es_3Et_3EW_9BA_G3E
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	50V
Collector-Emitter Voltage (Maximum)	VCE	45V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		180
Transition Frequency	FT	300MHz
Collector Capacitance	CC	6pF

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