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BU406 - STMicroelectronics

Description: Bipolar Junction Transistor, NPN Type, TO-220AB

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BU406 - STMicroelectronics PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - TO-220_2024 -1
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BU406 - STMicroelectronics  - 3D model - Transistor Outline, Vertical - TO-220_2024 -1
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BU406 Details

  • Manufacturer Part Number:

    BU406

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-220AB

  • Package Description:

    PLASTIC, TO-220, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.95

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Collector Current-Max (IC):

    7 A

  • Collector-Emitter Voltage-Max:

    200 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    10

  • JEDEC-95 Code:

    TO-220AB

  • JESD-30 Code:

    R-PSFM-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:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Polarity/Channel Type:

    NPN

  • Power Dissipation Ambient-Max:

    60 W

  • Power Dissipation-Max (Abs):

    60 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    SINGLE

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    10 MHz

  • Turn-off Time-Max (toff):

    750 ns

  • VCEsat-Max:

    1 V

BU406 Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the BU406 is 4.5V to 18V, although it can tolerate up to 20V for short periods.
  • To ensure proper biasing, connect the base of the transistor to the emitter through a resistor (Rb) and a capacitor (Cb) in parallel. The value of Rb should be around 1kΩ to 10kΩ, and Cb should be around 10nF to 100nF.
  • The BU406 can handle a maximum collector current of 3A, but it's recommended to keep it below 2A for reliable operation.
  • To prevent overheating, ensure good heat dissipation by mounting the transistor on a heat sink with a thermal resistance of around 10°C/W. Also, keep the ambient temperature below 50°C.
  • Yes, the BU406 can be used as a switch, but it's not recommended due to its relatively low current gain (β) and high saturation voltage. Instead, consider using a dedicated switch transistor like the 2N3904 or 2N2222.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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Part Image BU406G Rochester Electronics LLC

7A, 200V, NPN, Si, POWER TRANSISTOR, TO-220AB, ROHS COMPLIANT, CASE 221A-09, 3 PIN

Part Image BU406TU Fairchild Semiconductor Corporation

Power Bipolar Transistor, 7A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin

Part Image BU406 Samsung Semiconductor

Power Bipolar Transistor, 7A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin

Part Image BU406 Motorola Semiconductor Products

Power Bipolar Transistor, 7A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin

Part Image BU406 JW Miller

POWER TRANSISTOR, TO-220, TO-220, 3 PIN

For a full list of alternate parts for BU406, check out Findchips.com