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V421DA40 - LITTELFUSE

Description: 680 V 40 kA Varistor 1 Circuit Chassis Mount Encased Disc

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V421DA40 Details

  • Manufacturer Part Number:

    V421DA40

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Reach Compliance Code:

    Unknown

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.40.00

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    8

  • Circuit RMS Voltage-Max:

    420 V

  • Energy Absorbing Capacity-Max:

    600 J

  • JESD-609 Code:

    e3

  • Mounting Feature:

    CHASSIS MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Height:

    67 mm

  • Package Length:

    62 mm

  • Package Style:

    Screw Ends

  • Package Width:

    15 mm

  • Rated Power Dissipation (P):

    2 W

  • Rated Temperature:

    85 °C

  • Resistor Type:

    VARISTOR

  • Surface Mount:

    NO

  • Technology:

    METAL OXIDE

  • Terminal Finish:

    MATTE TIN

  • Terminal Shape:

    BINDING POST

  • Working Voltage:

    560 V

V421DA40 Frequently Asked Questions (FAQs)

  • A good PCB layout for the V421DA40 should include a large copper area for heat dissipation, with multiple vias to the bottom layer to improve thermal conductivity. The device should be placed near a thermal pad or heat sink to further improve heat dissipation.
  • To ensure reliable operation in high-temperature environments, it's essential to follow the recommended derating curves for the V421DA40. Additionally, consider using a heat sink or thermal interface material to reduce the junction temperature, and ensure good airflow around the device.
  • When using the V421DA40 in a high-reliability or safety-critical application, it's crucial to follow the recommended design and testing guidelines to ensure the device meets the required safety and reliability standards. This may include additional testing, such as HALT (Highly Accelerated Life Testing) or HASS (Highly Accelerated Stress Screening), and compliance with relevant industry standards.
  • Yes, the V421DA40 can be used in a parallel configuration to increase current handling. However, it's essential to ensure that the devices are properly matched and that the PCB layout is designed to minimize current imbalance and thermal mismatch between the devices.
  • The V421DA40 is a sensitive device and requires proper ESD protection during handling and assembly. It's recommended to follow standard ESD handling procedures, such as using an ESD wrist strap or mat, and ensuring that the device is stored in an ESD-safe environment.

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V421DA40 Overview

Use the download button to access the V421DA40 3D model. You can still request or build the schematic symbol and PCB footprint by using the respective build or request forms on this page.
To find more CAD model downloads similar to this part, try a partial part number search, like V421D, or try a keyword search, such as Non-linear Resistors

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