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AHRF450 - LITTELFUSE

Description: PTC Resettable Fuse 4.5A(hold) 8.7A(trip) 16VDC 100A 3.6W 4s 0.017Ohm Radial 10.4 X 3 X 15.6mm Bulk

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AHRF450 - LITTELFUSE  - 3D model
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AHRF450 Details

  • Manufacturer Part Number:

    AHRF450

  • 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:

    Rmin@25 Deg Cel

  • Mounting Feature:

    THROUGH HOLE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Height:

    15.6 mm

  • Package Length:

    10.4 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    AEC-Q200

  • Resistance:

    0.017 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    16 V

AHRF450 Frequently Asked Questions (FAQs)

  • The recommended PCB layout for AHRF450 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 inductance.
  • The AHRF450 is designed to operate up to 125°C, but its melting point is affected by the ambient temperature. At higher temperatures, the fuse may melt at a lower current rating. It's essential to derate the fuse according to the temperature derating curve provided in the datasheet.
  • Yes, the AHRF450 is designed to withstand high-vibration environments. However, it's essential to ensure that the fuse is properly secured to the PCB using a suitable mounting method, such as a fuse clip or soldering, to prevent mechanical stress and damage.
  • The recommended soldering profile for AHRF450 involves a peak temperature of 260°C, a dwell time of 10-30 seconds, and a ramp-up rate of 3-5°C/second. It's essential to follow the recommended soldering profile to prevent damage to the fuse.
  • Yes, the AHRF450 is designed to operate in high-humidity environments. However, it's essential to ensure that the fuse is properly sealed and protected from moisture ingress to prevent corrosion and damage.

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AHRF450 Overview

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