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BC640 - NXP

Description: NXP BC640 PNP Bipolar Transistor, 1 A, 80 V, 3-Pin SPT

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Symbol
BC640 - NXP - PCB symbol
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PCB Footprints
BC640 - NXP PCB footprint - Other - Other - SOT54_2023
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3D Models
BC640 - NXP - 3D model - Other - SOT54_2023
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BC640 Details

  • Manufacturer Part Number:

    BC640

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-92

  • Package Description:

    ROHS COMPLIANT, PLASTIC, SC-43A, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • Manufacturer:

    NXP Semiconductors

  • YTEOL:

    0

  • Collector Current-Max (IC):

    1 A

  • Collector-Emitter Voltage-Max:

    80 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    63

  • JEDEC-95 Code:

    TO-92

  • JESD-30 Code:

    O-PBCY-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:

    ROUND

  • Package Style:

    CYLINDRICAL

  • Polarity/Channel Type:

    PNP

  • Power Dissipation-Max (Abs):

    0.83 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    BOTTOM

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    145 MHz

  • VCEsat-Max:

    0.5 V

BC640 Frequently Asked Questions (FAQs)

  • NXP recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the thermal pad should be connected to a ground plane or a heat sink.
  • The BC640 requires a stable voltage supply and proper biasing to operate within its specifications. Ensure the input voltage is within the recommended range (typically 10-30V), and the output voltage is properly decoupled with capacitors. A minimum of 100nF ceramic capacitor is recommended between the output and ground.
  • The BC640 has a maximum junction temperature (Tj) of 150°C. However, for reliable operation, NXP recommends keeping the junction temperature below 125°C. Ensure proper heat sinking and thermal management to prevent overheating.
  • While the BC640 is suitable for high-frequency applications, its performance may degrade above 100kHz. For frequencies above 100kHz, consider using a more specialized high-frequency transistor or a dedicated high-frequency switch. Consult the datasheet and application notes for specific guidance.
  • Handle the BC640 with care to prevent ESD damage. Use an ESD wrist strap or mat, and ensure the PCB is properly grounded. Implement ESD protection circuits, such as TVS diodes or resistors, in the design to prevent voltage spikes from damaging the device.

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BC640 Overview

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About NXP

NXP Semiconductors is a leading manufacturer of semiconductor devices with a wide range of semiconductor solutions, including microcontrollers, sensors, connectivity solutions, power management ICs, and security solutions. These products are used in a variety of applications such as automotive, industrial automation, smart homes, mobile devices, and more. NXP Semiconductors is one of the world’s largest semiconductor companies and is headquartered in Eindhoven, the Netherlands.

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BC640 Alternates

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Image Part Number Model
Part Image BC640ZL1G Rochester Electronics LLC

500mA, 80V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, CASE 29-11, TO-226, 3 PIN
Part Image BC640 Fairchild Semiconductor Corporation

Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92
Part Image BC640ZL1 onsemi

Small Signal Bipolar Transistor, 0.5A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92
Part Image BC640 Vishay Semiconductors

Small Signal Bipolar Transistor
Part Image BC640AMO NXP Semiconductors

Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92
For a full list of alternate parts for BC640, check out Findchips.com