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BC548A - onsemi

Description: Obsolete - NPN Bipolar Transistor

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Symbol
BC548A - onsemi - PCB symbol
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PCB Footprints
BC548A - onsemi PCB footprint - Other - Other - TO127P254X732-3
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3D Models
BC548A - onsemi - 3D model - Other - TO127P254X732-3
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BC548A Details

  • Manufacturer Part Number:

    BC548A

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    E-PKG AXIAL-LEADED GLASS DIODE

  • Package Description:

    TO-226AA, 3 PIN

  • Manufacturer Package Code:

    017AE

  • ECCN Code:

    EAR99

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Collector Current-Max (IC):

    0.1 A

  • Collector-Emitter Voltage-Max:

    30 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    110

  • JEDEC-95 Code:

    TO-92

  • JESD-30 Code:

    O-PBCY-T3

  • JESD-609 Code:

    e0

  • Number of Elements:

    1

  • Number of Terminals:

    3

  • Operating Temperature-Max:

    150 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    ROUND

  • Package Style:

    CYLINDRICAL

  • Polarity/Channel Type:

    NPN

  • Power Dissipation-Max (Abs):

    0.625 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    BOTTOM

  • Transistor Application:

    AMPLIFIER

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    300 MHz

BC548A Frequently Asked Questions (FAQs)

  • The BC548A can operate safely between -55°C to 150°C, but the recommended operating temperature range is -40°C to 125°C for optimal performance.
  • To ensure proper biasing, set the base-emitter voltage (VBE) between 0.6V to 0.8V, and the collector-emitter voltage (VCE) between 1V to 10V, depending on the specific application requirements.
  • The maximum collector current (IC) for the BC548A is 100mA, but it's recommended to keep it below 50mA for optimal performance and to prevent overheating.
  • Yes, the BC548A can be used as a switch, but ensure the base-emitter voltage (VBE) is sufficient to fully saturate the transistor (typically >0.8V). Also, consider the collector-emitter saturation voltage (VCE(sat)) and the switching frequency to avoid overheating and ensure reliable operation.
  • Choose resistor values based on the specific application requirements, such as the desired gain, input impedance, and output impedance. A good starting point is to use the values recommended in the datasheet or application notes, and then adjust as needed through experimentation and simulation.

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BC548A Overview

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BC548A Alternates

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Image Part Number Model
Part Image BC548A Motorola Semiconductor Products

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92
Part Image BC548A Micro Electronics Corporation

Small Signal Bipolar Transistor, 0.1A I(C), NPN,
Part Image BC548A-BP Micro Commercial Components

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92
Part Image BC548ATA Fairchild Semiconductor Corporation

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92, LEAD FREE, TO-92, 3 PIN
Part Image BC548A Continental Device India Ltd

Small Signal Bipolar Transistor, 0.1A I(C), 1-Element, NPN, Silicon, TO-92
For a full list of alternate parts for BC548A, check out Findchips.com