BC558A PNP Transistor

The BC558A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BC558A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BC558A 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 BC558A transistor as follows.

BC558A Transistor Specification

Transistor Code		BC558A
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO226
Collector Power Dissipation (Maximum)	PC	0.5W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	25V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		125
Transition Frequency	FT	75MHz
Collector Capacitance	CC	7pF

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