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RXEF050 - LITTELFUSE

Description: Polymeric PTC Resettable Fuse 72V 500 mA Ih Through Hole Radial, Disc

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PCB Footprints
RXEF050 - LITTELFUSE PCB footprint - Other - Other - RXEF050-2
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3D Models
RXEF050 - LITTELFUSE  - 3D model - Other - RXEF050-2
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RXEF050 Details

  • Manufacturer Part Number:

    RXEF050

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    RADIAL LEADED

  • Reach Compliance Code:

    Compliant

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    7.4

  • Additional Feature:

    Rmax:0.77 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:

    13.7 mm

  • Package Length:

    7.9 mm

  • Package Shape:

    DISK PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    CSA; CQC; TUV; UL

  • Resistance:

    0.5 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Working Voltage:

    72 V

RXEF050 Frequently Asked Questions (FAQs)

  • A good PCB layout for RXEF050 involves keeping the fuse as close to the power source as possible, using a wide copper trace for the fuse, and minimizing the distance between the fuse and the power source. Additionally, ensure the PCB is designed to handle high currents and has adequate thermal dissipation.
  • To select the correct fuse rating, consider the maximum current and voltage requirements of your application. Choose a fuse with a rating that is slightly higher than the maximum expected current. Also, consider the ambient temperature, as high temperatures can affect fuse performance.
  • Store RXEF050 in a cool, dry place away from direct sunlight and moisture. Handle the fuse by the body, avoiding touching the leads or glass body to prevent damage. Use anti-static wrist straps or mats when handling the fuse to prevent electrostatic discharge.
  • Yes, RXEF050 is suitable for high-reliability applications. Littelfuse Inc. provides a range of fuses that meet or exceed industry standards for reliability, including AEC-Q200 and MIL-PRF-23419. However, it's essential to consult with Littelfuse Inc. or a qualified engineer to ensure the fuse meets the specific requirements of your application.
  • To troubleshoot issues with RXEF050, start by checking the fuse rating and ensuring it matches the application's requirements. Verify the PCB layout and ensure proper thermal dissipation. Check for signs of overheating, such as discoloration or deformation. If the issue persists, consult the datasheet or contact Littelfuse Inc. for support.

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RXEF050 Overview

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Image Part Number Model
Part Image RXEF050-2 Littelfuse Inc

PTC Resettable Fuse, 0.5ohm, Through Hole Mount