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BC557B Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
BC557BMOT/PHI2940Yes

BC557B is a general-purpose PNP transistor manufactured by Motorola (MOT) and Philips (PHI).

The BC557B is a general-purpose PNP transistor manufactured by Motorola (MOT) and Philips (PHI). Below are the factual specifications, descriptions, and features:

Manufacturer:

  • MOT (Motorola)
  • PHI (Philips)

Specifications:

  • Transistor Type: PNP
  • Maximum Collector-Base Voltage (VCB): -50V
  • Maximum Collector-Emitter Voltage (VCE): -45V
  • Maximum Emitter-Base Voltage (VEB): -5V
  • Collector Current (IC): -100mA
  • Power Dissipation (Ptot): 500mW
  • DC Current Gain (hFE): 125–800 (varies by batch)
  • Transition Frequency (fT): 150MHz
  • Operating Temperature Range: -65°C to +150°C

Description:

The BC557B is a low-power PNP transistor designed for general-purpose amplification and switching applications. It is housed in a TO-92 package, making it suitable for compact circuit designs.

Features:

  • High current gain (hFE)
  • Low noise performance
  • Suitable for audio and signal amplification
  • Complementary NPN pair: BC547B

This information is based on datasheets from MOT and PHI. Always refer to the latest manufacturer documentation for precise details.

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