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BC557 PNP Transistor (20 Pcs)


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  • Pack size: 10 or 50 pieces
  • Transistor, PNP, 45V, 0.1A,
  • Housing TO92
  • Transducer polarity: PNP
  • Voltage, Uceo (V): 45V
  • Crossover frequency ft type: 300MHz
  • Power dissipation Pd: 625mW
  • DC collector current: 100mA
  • DC power gain hFE: 150
  • Operating temperature: -55 ° C ~ 150 ° C
  • Number of pins: 3

Availability: 50 in stock

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The BC557 transistor is a fundamental component in the realm of electronics. Its importance lies in its versatility and compact size, making it an essential building block for a wide array of electronic circuits. Whether you’re delving into signal amplification, voltage regulation, or even switching applications, the BC557 is here to provide the foundation for your electronic projects. Its adaptability and capability to handle different tasks are what make it a cornerstone in the world of electronics.


  • Signal Amplification: The BC557 transistor primarily amplifies weak electrical signals, making it vital in audio amplifiers and signal processing circuits.
  • Low Noise: Moreover, its low noise characteristics suit applications where signal purity is critical, such as high-fidelity audio amplifiers.
  • PNP Type: The BC557, being a PNP transistor, handles positive current flows, enabling compatibility with various circuit configurations.
  • Compact Design: Its small form factor facilitates use in tight spaces and miniaturized electronic devices.


  • Audio Amplifiers: Utilized in audio amplifiers to enhance audio signal quality and strength due to its low noise and amplification capabilities.
  • Signal Processing: Additionally, Employed in signal processing circuits to amplify and process weak signals for further analysis or control.
  • Voltage Regulation: Likewise, In voltage regulation circuits, the BC557 stabilizes voltage levels in power supplies.
  • Switching: In specific switching applications, it functions as a switch to control current flow in a circuit.

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For more information:-www.mifraelectronics.com 
* Product Images are shown for illustrative purposes only and may differ from actual product.

Packages includes:-

  • 1 x BC557


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