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RKEF500 - LITTELFUSE

Description: Polymeric PTC Resettable Fuse 60V 5 A Ih Through Hole Radial, Disc

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PCB Footprints
RKEF500 - LITTELFUSE PCB footprint - Other - Other - RKEF500-7
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3D Models
RKEF500 - LITTELFUSE  - 3D model - Other - RKEF500-7
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RKEF500 Details

  • Manufacturer Part Number:

    RKEF500

  • 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

  • Additional Feature:

    Rmin@25 Deg Cel

  • 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:

    29 mm

  • Package Length:

    24.1 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    CSA; TUV; UL

  • Resistance:

    0.012 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Finish:

    MATTE TIN

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    60 V

RKEF500 Frequently Asked Questions (FAQs)

  • A good PCB layout for the RKEF500 involves keeping the input and output traces separate, using a solid ground plane, and minimizing the length of the input and output traces to reduce parasitic inductance and capacitance.
  • Proper cooling of the RKEF500 can be achieved by providing adequate airflow, using a heat sink, and ensuring good thermal contact between the device and the heat sink. The datasheet provides thermal resistance values to help with thermal design.
  • Exceeding the maximum ratings of the RKEF500 can lead to reduced lifespan, permanent damage, or even catastrophic failure. It is essential to ensure that the device operates within the specified voltage, current, and temperature ranges.
  • Troubleshooting the RKEF500 involves checking the input and output voltages, currents, and temperatures, as well as verifying the PCB layout and component values. A systematic approach to debugging can help identify and resolve issues quickly.
  • Yes, the RKEF500 can be susceptible to electromagnetic interference (EMI). To minimize EMI, use shielding, filtering, and proper grounding techniques. The datasheet provides guidance on EMI mitigation.

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RKEF500 Overview

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Image Part Number Model
Part Image RKEF500-1 Littelfuse Inc

PTC Resettable Fuse, 0.012ohm, Through Hole Mount