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RXEF300 - LITTELFUSE

Description: Polymeric PTC Resettable Fuse 72V 3 A Ih Through Hole Radial, Disc 40 mOhms -40°C ~ 85°C

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PCB Footprints
RXEF300 - LITTELFUSE PCB footprint - Other - Other - 23.9 x 3 x 28.6mm
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3D Models
RXEF300 - LITTELFUSE  - 3D model - Other - 23.9 x 3 x 28.6mm
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RXEF300 Details

  • Manufacturer Part Number:

    RXEF300

  • 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:0.06 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:

    28.6 mm

  • Package Length:

    23.9 mm

  • Package Shape:

    DISK PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    CSA; CQC; TUV; UL

  • Resistance:

    0.04 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Working Voltage:

    72 V

RXEF300 Frequently Asked Questions (FAQs)

  • A good PCB layout for the RXEF300 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, use a soldering iron with a temperature range of 250°C to 260°C. Apply a small amount of solder paste to the pads, and use a gentle touch to avoid applying excessive pressure, which can damage the device. Inspect the solder joints under a microscope to ensure they are smooth and free of cold solder joints.
  • The RXEF300 is rated for operation from -40°C to 125°C. However, it's essential to note that the device's performance may degrade at extreme temperatures, and the maximum operating temperature range may vary depending on the specific application and environmental conditions.
  • Yes, the RXEF300 is designed for high-reliability applications and meets the requirements for safety-critical systems. However, it's essential to follow the recommended design and layout guidelines, and to perform thorough testing and validation to ensure the device meets the specific requirements of your application.
  • To troubleshoot issues with the RXEF300, start by verifying the power supply voltage and ensuring it's within the recommended range. Check the input and output signals using an oscilloscope to identify any anomalies. Also, inspect the PCB for any signs of damage, such as overheating or physical damage to the device or surrounding components.

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RXEF300 Overview

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