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AHRF300 - LITTELFUSE

Description: POLYSWITCH BD280 BLADED CONTACT RESETTABLE OVERCURRENT PROTECTION

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PCB Footprints
AHRF300 - LITTELFUSE PCB footprint - Other - Other - AHRF300-10
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3D Models
AHRF300 - LITTELFUSE  - 3D model - Other - AHRF300-10
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AHRF300 Details

  • Manufacturer Part Number:

    AHRF300

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • 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:

    13.8 mm

  • Package Length:

    8.8 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3 mm

  • Packing Method:

    BULK

  • Reference Standard:

    AEC-Q200

  • Resistance:

    0.029 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    16 V

AHRF300 Frequently Asked Questions (FAQs)

  • The recommended PCB layout for AHRF300 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 AHRF300 is designed to operate up to 125°C, but 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 AHRF300 is designed to withstand high-vibration environments. However, it's recommended to follow proper PCB mounting and soldering techniques to ensure the fuse remains securely attached to the board.
  • To select the correct AHRF300 fuse rating, determine the maximum current that your circuit can handle, and then choose a fuse rating that is 1.5 to 2 times the maximum current. This will ensure that the fuse blows before the circuit is damaged.
  • Yes, the AHRF300 is compatible with lead-free soldering processes. However, it's recommended to follow the manufacturer's recommended soldering profile to ensure reliable joint formation.

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AHRF300 Overview

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