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MJD122T4 - STMicroelectronics

Description: Bipolar (BJT) Transistor NPN - Darlington 100 V 8 A 20 W Surface Mount DPAK , 10µA , 150°C

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MJD122T4 - STMicroelectronics PCB footprint - Other - Other - DPAK (TO-252)_2026-1.16
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MJD122T4 - STMicroelectronics  - 3D model - Other - DPAK (TO-252)_2026-1.16
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MJD122T4 Details

  • Manufacturer Part Number:

    MJD122T4

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-252

  • Package Description:

    ROHS COMPLIANT, DPAK-2/3

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.95

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    9

  • Case Connection:

    COLLECTOR

  • Collector Current-Max (IC):

    8 A

  • Collector-Emitter Voltage-Max:

    100 V

  • Configuration:

    DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

  • DC Current Gain-Min (hFE):

    100

  • JEDEC-95 Code:

    TO-252

  • JESD-30 Code:

    R-PSSO-G2

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    150 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity/Channel Type:

    NPN

  • Power Dissipation Ambient-Max:

    20 W

  • Power Dissipation-Max (Abs):

    20 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Position:

    SINGLE

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

    30

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • VCEsat-Max:

    4 V

MJD122T4 Frequently Asked Questions (FAQs)

  • The MJD122T4 can operate from -40°C to 150°C, making it suitable for high-reliability applications.
  • To ensure proper biasing, connect the base of the transistor to a voltage divider network that provides a stable voltage reference, and ensure the collector-emitter voltage is within the recommended range.
  • To minimize thermal resistance, use a thermal pad on the PCB, and ensure the transistor is mounted on a heat sink or thermal interface material. Keep the thermal path as short as possible and avoid thermal vias.
  • Yes, the MJD122T4 can be used in switching applications, but be aware of the maximum switching frequency (typically up to 100 kHz) and ensure the transistor is properly biased to avoid overheating.
  • To protect the MJD122T4 from ESD, use anti-static packaging, handle the device by the body or with an anti-static wrist strap, and ensure the PCB has ESD protection circuits.

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MJD122T4 Overview

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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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