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BD235 - STMicroelectronics

Description: Transistor Bipolar NPN 60V 2A SOT32

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Symbol
BD235 - STMicroelectronics - PCB symbol
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PCB Footprints
BD235 - STMicroelectronics PCB footprint - Other - Other - SOT-32 (TO-126)_1
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3D Models
BD235 - STMicroelectronics - 3D model - Other - SOT-32 (TO-126)_1
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BD235 Details

  • Manufacturer Part Number:

    BD235

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SIP

  • Package Description:

    ROHS COMPLIANT PACKAGE-3

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.95

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Case Connection:

    ISOLATED

  • Collector Current-Max (IC):

    2 A

  • Collector-Emitter Voltage-Max:

    60 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    25

  • JEDEC-95 Code:

    TO-126

  • 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:

    25 W

  • Power Dissipation-Max (Abs):

    25 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

  • Transition Frequency-Nom (fT):

    3 MHz

  • VCEsat-Max:

    0.6 V

BD235 Frequently Asked Questions (FAQs)

  • A good PCB layout for the BD235 should include a large copper area for heat dissipation, with multiple vias connecting the top and bottom layers. The device should be placed near a thermal pad or a heat sink to improve heat dissipation.
  • The input capacitor should be chosen based on the input voltage ripple requirement and the output voltage regulation. A ceramic capacitor with a value between 1uF to 10uF is recommended, with a voltage rating higher than the maximum input voltage.
  • The maximum output current capability of the BD235 is 3.5A, but it can be limited by the thermal performance of the device and the PCB layout. It's recommended to derate the output current based on the ambient temperature and the device's thermal performance.
  • To ensure the stability of the BD235 output voltage, it's recommended to use a minimum output capacitance of 10uF, with a low ESR (Equivalent Series Resistance) and a voltage rating higher than the output voltage. Additionally, the output voltage should be monitored and adjusted as needed to prevent oscillations.
  • The recommended input voltage range for the BD235 is 4.5V to 18V, but it can operate with an input voltage as low as 3.5V. However, the device's performance and efficiency may be affected at lower input voltages.

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BD235 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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BD235 Alternates

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Image Part Number Model
Part Image BD235 Continental Device India Ltd

Power Bipolar Transistor, 2A I(C), 60V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD235 Motorola Semiconductor Products

Power Bipolar Transistor, 2A I(C), 60V V(BR)CEO, 1-Element, NPN, Silicon, TO-225AA, Plastic/Epoxy, 3 Pin
Part Image BD235 Central Semiconductor Corp

Power Bipolar Transistor, 2A I(C), 60V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD235 Samsung Semiconductor

Power Bipolar Transistor, 2A I(C), 60V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD235 Fairchild Semiconductor Corporation

Power Bipolar Transistor, 2A I(C), 60V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
For a full list of alternate parts for BD235, check out Findchips.com