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BC549B - Diotec

Description: Bipolar (BJT) Transistor NPN 30 V 100 mA 300MHz 500 mW Through Hole TO-92 -55°C ~ 150°C (TJ)

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BC549B - Diotec PCB footprint - Other - Other - TO-92_2026-2
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BC549B - Diotec  - 3D model - Other - TO-92_2026-2
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BC549B Details

  • Manufacturer Part Number:

    BC549B

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-92

  • Package Description:

    ROHS COMPLIANT, PLASTIC PACKAGE-3

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • Manufacturer:

    Diotec Semiconductor AG

  • YTEOL:

    6.5

  • Collector Current-Max (IC):

    0.1 A

  • Collector-Emitter Voltage-Max:

    30 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    200

  • JEDEC-95 Code:

    TO-92

  • JESD-30 Code:

    O-PBCY-W3

  • 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

  • Peak Reflow Temperature (Cel):

    260

  • Polarity/Channel Type:

    NPN

  • Power Dissipation-Max (Abs):

    0.5 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    WIRE

  • Terminal Position:

    BOTTOM

  • Time@Peak Reflow Temperature-Max (s):

    10

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    300 MHz

BC549B Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the BC549B is -55°C to 150°C.
  • Yes, the BC549B is suitable for high-frequency applications up to 100 MHz due to its high transition frequency (fT) of 300 MHz.
  • The maximum collector-emitter voltage (Vceo) for the BC549B is 30V.
  • Yes, the BC549B can be used in switching applications due to its high switching speed and low saturation voltage.
  • Yes, the BC549B is a low-noise transistor with a noise figure of 2 dB, making it suitable for low-noise amplifier applications.

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BC549B Overview

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BC549B Alternates

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Image Part Number Model
Part Image BC549B Fairchild Semiconductor Corporation

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92

Part Image BC549B-AMMO NXP Semiconductors

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92

Part Image BC549B Vishay Semiconductors

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-226AA

Part Image BC549B Crimson Semiconductor Inc

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92

Part Image BC549B TDK Micronas GmbH

Small Signal Bipolar Transistor, 0.1A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92

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