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RUEF185-1 - LITTELFUSE

Description: PTC Resettable Fuse 1.85A(hold) 3.7A(trip) 30V 100A 1W 8.7s 0.03Ohm Radial 10.2 X 3 X 15.7mm Loose

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Symbol
RUEF185-1 - LITTELFUSE - PCB symbol
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PCB Footprints
RUEF185-1 - LITTELFUSE PCB footprint - Other - Other - RUEF185-1-1
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3D Models
RUEF185-1 - LITTELFUSE - 3D model - Other - RUEF185-1-1
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RUEF185-1 Details

  • Manufacturer Part Number:

    RUEF185-1

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    RADIAL LEADED

  • Reach Compliance Code:

    Unknown

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    7

  • Additional Feature:

    Rmax:0.06 OHMS AT 20 DEG CEL

  • Circuit RMS Voltage-Max:

    30 V

  • Mounting Feature:

    THROUGH HOLE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Height:

    15.7 mm

  • Package Length:

    10.2 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Reference Standard:

    CSA, TUV, UL

  • Resistance:

    0.03 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    30 V

RUEF185-1 Frequently Asked Questions (FAQs)

  • The recommended PCB layout for RUEF185-1 involves keeping the fuse as close as possible to the power source, using a wide copper trace to reduce resistance, and avoiding sharp corners or bends in the trace to minimize electromagnetic interference (EMI).
  • The RUEF185-1 fuse is designed to handle inrush currents up to 100A for 10ms, making it suitable for applications with high inrush currents such as motor startup or capacitor charging.
  • While the RUEF185-1 is rated for operation up to 125°C, its performance may degrade at high temperatures. It's recommended to derate the fuse's current rating by 1.5% per degree Celsius above 85°C to ensure reliable operation.
  • Yes, the RUEF185-1 fuse is designed to withstand high-vibration environments, with a vibration rating of 10-2000Hz, 10G peak acceleration.
  • No, it's not recommended to use multiple RUEF185-1 fuses in parallel to increase the current rating, as this can lead to uneven current sharing and reduced reliability. Instead, consider using a single fuse with a higher current rating.

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RUEF185-1 Overview

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