Amazing circuits BC557/BC547 transistor

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BC557 is a general-purpose transistor, used like an amplifier or a switch in electronic circuits. Its hFE ratings of this transistor range from 125 to 800 to make the transistor ideal by using like an amplifier within electronic circuits like audio signal amplification.



Equivalent BC557 PNP Transistors are BC157, 2N3906, BC558, 2SA1943, S8550, BD140, TIP127 & TIP42. The complimentary of BC557 NPN transistor is BC547.


100mA
BC557 Transistor Features:

Continuous Collector Current: 100mA. Collector Emitter Voltage: 50V. Base Trigger Voltage: 6V. Base Current: 5mA


BC557 Transistor Pinout

Base (B): The base pin is the control pin of the transistor. A small current flowing into the base can control a larger current flow between the emitter and collector, making it operate as an amplifier or a switch. Emitter (E): This is the pin from where the current flows into the transistor.

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