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BC557B PNP Transistor

The BC557B is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BC557B transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BC557B 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 BC557B transistor as follows.

Circuit diagram symbol of the BC557B transistor

BC557B Transistor Specification

Transistor Code BC557B
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package TO92
Collector Power Dissipation (Maximum) PC 0.5W
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 5V
Forward Current Transfer Ratio (hFE Value) 200
Transition Frequency FT 75MHz
Collector Capacitance CC 9pF

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