ZTX557 PNP Transistor

The ZTX557 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the ZTX557 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The ZTX557 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 ZTX557 transistor as follows.

ZTX557 Transistor Specification

Transistor Code		ZTX557
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO226
Collector Power Dissipation (Maximum)	PC	1W
Collector-Base Voltage (Maximum)	VCB	300V
Collector-Emitter Voltage (Maximum)	VCE	300V
Collector Current (Maximum)	IC	1A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	75MHz
Collector Capacitance	CC	10pF

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