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BUL742C - STMicroelectronics

Description: High voltage fast-switching NPN power transistor

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BUL742C - STMicroelectronics - PCB symbol
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PCB Footprints
BUL742C - STMicroelectronics PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - TO-220 (dual gauge) _2020
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3D Models
BUL742C - STMicroelectronics - 3D model - Transistor Outline, Vertical - TO-220 (dual gauge) _2020
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BUL742C Details

  • Manufacturer Part Number:

    BUL742C

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-220AB

  • Package Description:

    ROHS COMPLIANT, TO-220, 3 PIN

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    4

  • Case Connection:

    COLLECTOR

  • Collector Current-Max (IC):

    4 A

  • Collector-Emitter Voltage-Max:

    400 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    25

  • 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-Max (Abs):

    70 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    SINGLE

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

BUL742C Frequently Asked Questions (FAQs)

  • The BUL742C can operate up to 100 kHz, but the recommended frequency range is between 10 kHz and 50 kHz for optimal performance.
  • To ensure proper biasing, connect the VCC pin to a stable voltage source between 4.5V and 18V, and the GND pin to a solid ground. Additionally, decouple the VCC pin with a 10nF capacitor to reduce noise and ensure stability.
  • The BUL742C can handle a maximum continuous current of 2A, and a peak current of 4A for a short duration (less than 100ms). Exceeding these limits may cause damage to the device.
  • To protect the BUL742C, use a voltage regulator to limit the input voltage to the recommended range. Additionally, consider adding overcurrent protection devices, such as fuses or current-limiting resistors, to prevent damage from excessive current.
  • The thermal resistance of the BUL742C is typically around 25°C/W. High temperatures can reduce the device's performance and lifespan. Ensure good heat dissipation by using a heat sink or a thermally conductive substrate, and avoid operating the device in high-temperature environments.

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BUL742C 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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