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BD135 - STMicroelectronics

Description: BD135, NPN Bipolar Transistor, 3 A 45 V HFE:25 Power, 3-Pin SOT-32

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Symbol
BD135 - STMicroelectronics - PCB symbol
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PCB Footprints
BD135 - STMicroelectronics PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - SOT-32 (TO-126)
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3D Models
BD135 - STMicroelectronics - 3D model - Transistor Outline, Vertical - SOT-32 (TO-126)
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BD135 Details

  • Manufacturer Part Number:

    BD135

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SIP

  • Package Description:

    PLASTIC PACKAGE-3

  • Pin Count:

    3

  • Country Of Origin:

    India

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.75

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    9

  • Case Connection:

    ISOLATED

  • Collector Current-Max (IC):

    1.5 A

  • Collector-Emitter Voltage-Max:

    45 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:

    12.5 W

  • Power Dissipation-Max (Abs):

    8 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    SINGLE

  • Transistor Application:

    AMPLIFIER

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    250 MHz

  • VCEsat-Max:

    0.5 V

BD135 Frequently Asked Questions (FAQs)

  • The maximum safe operating area (SOA) for the BD135 is not explicitly stated in the datasheet, but it can be estimated based on the device's thermal resistance and maximum junction temperature. As a general rule, it's recommended to keep the device within the specified absolute maximum ratings to ensure reliable operation.
  • To ensure the BD135 is properly biased for linear operation, you should ensure that the base-emitter voltage (VBE) is within the recommended range (typically around 0.6-0.7V) and that the collector-emitter voltage (VCE) is sufficient to maintain a linear operating region. You can use a voltage divider or a current source to set the base voltage and current, respectively.
  • For optimal thermal management, it's recommended to use a heat sink or a thermal pad on the BD135, especially in high-power applications. A good PCB layout should also ensure minimal thermal resistance between the device and the heat sink. Additionally, keep the device away from other heat sources and ensure good airflow around the device.
  • Yes, the BD135 can be used as a switch, but it's essential to consider the device's switching characteristics, such as the turn-on and turn-off times, and the base-emitter voltage required for saturation. You should also ensure that the device is properly biased and that the collector-emitter voltage is sufficient to maintain a low saturation voltage.
  • To protect the BD135 from electrostatic discharge (ESD), it's recommended to use ESD protection devices, such as TVS diodes or ESD protection arrays, in parallel with the device. You should also follow proper handling and storage procedures to minimize the risk of ESD damage.

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BD135 Overview

Use the download button to access the BD135 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search or try a keyword search, such as Power Bipolar Transistors

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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BD135 Alternates

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Image Part Number Model
Part Image BD135G Rochester Electronics LLC

1.5A, 45V, NPN, Si, POWER TRANSISTOR, TO-225AA, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, CASE 77-09, 3 PIN
Part Image BD135 Continental Device India Ltd

Power Bipolar Transistor, 1.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD135 Motorola Semiconductor Products

Power Bipolar Transistor, 1.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-225AA, Plastic/Epoxy, 3 Pin
Part Image BD135 Baneasa SA

Power Bipolar Transistor, 1A I(C), 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD135 Samsung Semiconductor

Power Bipolar Transistor, 1.5A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
For a full list of alternate parts for BD135, check out Findchips.com