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BC557BTA - onsemi

Description: Pb-Free Package

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BC557BTA - onsemi - PCB symbol
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PCB Footprints
BC557BTA - onsemi PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - 3-Lead TO-92, 0.2 in Line Spacing Lead Form
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3D Models
BC557BTA - onsemi - 3D model - Transistor Outline, Vertical - 3-Lead TO-92, 0.2 in Line Spacing Lead Form
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  • Datasheet Download Datasheet
  • Stock & Prices $ Price & Stock for BC557BTA
  • Part Number BC557BTA
  • Manufacturer onsemi
  • Pin Count 3
  • Part Category Transistor BJT PNP
  • Package Category Transistor Outline, Vertical
  • Footprint Name Transistor Outline, Vertical - 3-Lead TO-92, 0.2 in Line Spacing Lead Form
  • Released Date Jun 28, 2017
  • Last Modified Date Jan 22, 2025 4:53 PM UTC
  • Pinout / Pin List Click Here (Member Only)

BC557BTA Details

  • Manufacturer Part Number:

    BC557BTA

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-92-3 LF

  • Manufacturer Package Code:

    135AR

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • Manufacturer:

    onsemi

  • YTEOL:

    6.5

  • Collector Current-Max (IC):

    0.1 A

  • Collector-Emitter Voltage-Max:

    45 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    200

  • JEDEC-95 Code:

    TO-92

  • JESD-30 Code:

    O-PBCY-T3

  • JESD-609 Code:

    e3

  • 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:

    PNP

  • Power Dissipation-Max (Abs):

    0.625 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    BOTTOM

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    150 MHz

BC557BTA Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the BC557BTA is -55°C to 150°C.
  • Yes, the BC557BTA can be used in switching applications, but it's primarily designed for linear amplifier applications. It's essential to ensure the transistor is operated within its safe operating area (SOA) to prevent damage.
  • The choice of resistor values for the base circuit depends on the specific application and the desired current gain. A general rule of thumb is to choose a base resistor that limits the base current to 1/10th of the collector current. You can use online calculators or consult the datasheet for more information.
  • The maximum collector current rating for the BC557BTA is 1 A.
  • The BC557BTA is not suitable for high-frequency applications above 100 MHz due to its limited transition frequency (fT) of 150 MHz. For high-frequency applications, consider using a transistor with a higher fT rating.

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BC557BTA Overview

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