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BD437G - onsemi

Description: Pb-Free Packages are Available; Complementary Types are BD438 and BD442

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PCB Footprints
BD437G - onsemi PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - TO-126-
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3D Models
BD437G - onsemi  - 3D model - Transistor Outline, Vertical - TO-126-
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BD437G Details

  • Manufacturer Part Number:

    BD437G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-225

  • Package Description:

    CASE 77-09, 3 PIN

  • Pin Count:

    3

  • Manufacturer Package Code:

    77-09

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    4

  • Collector Current-Max (IC):

    4 A

  • Collector-Emitter Voltage-Max:

    45 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    40

  • JEDEC-95 Code:

    TO-225AA

  • 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-Max (Abs):

    36 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    SINGLE

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    3 MHz

BD437G Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1 oz copper thickness and a thermal relief pattern under the IC.
  • Use a high-quality output capacitor with low ESR (Equivalent Series Resistance) and a minimum capacitance of 10uF. Also, ensure the input capacitor is rated for the maximum input voltage.
  • The maximum allowed input voltage ripple is 10% of the nominal input voltage. Exceeding this may affect the regulator's stability and output voltage accuracy.
  • Yes, but ensure the junction temperature (Tj) does not exceed 150°C. Use a heat sink or thermal interface material to maintain a safe operating temperature.
  • Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit to protect the input from surges or spikes. Ensure the TVS diode is rated for the maximum input voltage.

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BD437G Overview

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BD437G Alternates

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Image Part Number Model
Part Image BD437 SPC Multicomp

Power Bipolar Transistor, 4A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin

Part Image BD437TG onsemi

Power Bipolar Transistor, 4A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-225AA, Plastic/Epoxy, 3 Pin

Part Image BD437TUBE Continental Device India Ltd

Power Bipolar Transistor, 4A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin

Part Image BD437S onsemi

Power Bipolar Transistor, 4A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin

Part Image BD437 Micro Electronics Ltd

Power Bipolar Transistor, 4A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, Plastic/Epoxy, 3 Pin

For a full list of alternate parts for BD437G, check out Findchips.com