AC558K NPN Transistor

The AC558K is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the AC558K transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The AC558K 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 AC558K transistor as follows.

AC558K Transistor Specification

Transistor Code		AC558K
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Germanium(GE)
Package		X04
Collector Power Dissipation (Maximum)	PC	0.35W
Collector-Base Voltage (Maximum)	VCB	25V
Collector-Emitter Voltage (Maximum)	VCE	16V
Collector Current (Maximum)	IC	1A
Operating Junction Temperature (Maximum)	TJ	85°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	1MHz
Collector Capacitance	CC	50pF

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