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RXEF375 - LITTELFUSE

Description: Littelfuse 3.75A Radial Leaded PCB Mount Resettable Fuse, 72V

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PCB Footprints
RXEF375 - LITTELFUSE PCB footprint - Other - Other - RXEF375-1
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3D Models
RXEF375 - LITTELFUSE  - 3D model - Other - RXEF375-1
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RXEF375 Details

  • Manufacturer Part Number:

    RXEF375

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    RADIAL LEADED

  • Reach Compliance Code:

    Compliant

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    7.4

  • Additional Feature:

    Rmax:0.05 OHMS AT 20 DEG CEL

  • Circuit RMS Voltage-Max:

    72 V

  • JESD-609 Code:

    e3

  • Mounting Feature:

    THROUGH HOLE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Height:

    31.8 mm

  • Package Length:

    27.2 mm

  • Package Shape:

    DISK PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    CSA; CQC; TUV; UL

  • Resistance:

    0.03 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Finish:

    Tin (Sn)

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Working Voltage:

    72 V

RXEF375 Frequently Asked Questions (FAQs)

  • A good PCB layout for the RXEF375 involves keeping the input and output traces separate, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a common mode choke or a ferrite bead to filter out high-frequency noise.
  • To ensure proper soldering and mounting, follow the recommended soldering profile, use a solder with a melting point below 260°C, and apply a small amount of solder paste to the pads. Also, ensure the component is properly aligned and secured to the PCB using a suitable adhesive or mechanical fastening method.
  • The RXEF375 has a maximum operating temperature of 125°C. To ensure safe operation, provide adequate heat sinking, use a thermal interface material, and ensure good airflow around the component. Monitor the component's temperature and adjust the system design as needed to prevent overheating.
  • While the RXEF375 is a high-quality component, it's essential to evaluate its suitability for high-reliability or safety-critical applications. Consult with Littelfuse Inc. or a qualified engineer to determine the component's fitness for use in such applications, and ensure compliance with relevant industry standards and regulations.
  • To troubleshoot issues with the RXEF375, start by verifying the input and output voltages, checking for overheating, and inspecting the component for signs of physical damage. Common failure modes include overheating, electrical overstress, and mechanical stress. Consult the datasheet and application notes for more information on troubleshooting and failure analysis.

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RXEF375 Overview

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