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AHEF300 - LITTELFUSE

Description: Polymeric PTC Resettable Fuse 32V 3 A Ih Through Hole Radial, Disc

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PCB Footprints
AHEF300 - LITTELFUSE PCB footprint - Other - Other - AHEF300-4
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3D Models
AHEF300 - LITTELFUSE  - 3D model - Other - AHEF300-4
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AHEF300 Details

  • Manufacturer Part Number:

    AHEF300

  • 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:

    7.4

  • 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:

    15.5 mm

  • Package Length:

    10.2 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    Radial

  • Package Width:

    3.8 mm

  • Packing Method:

    BULK

  • Reference Standard:

    AEC-Q200; UL

  • Resistance:

    0.035 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    NO

  • Terminal Placement:

    RADIAL

  • Terminal Shape:

    WIRE

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    32 V

AHEF300 Frequently Asked Questions (FAQs)

  • A good PCB layout for the AHEF300 involves keeping the input and output traces separate, using a ground plane, and minimizing the length of the input and output traces to reduce electromagnetic interference (EMI).
  • To ensure proper soldering, use a soldering iron with a temperature of 250°C to 270°C, and apply a small amount of solder paste to the pads. Use a soldering technique that minimizes the risk of overheating the component.
  • The AHEF300 can operate safely within a temperature range of -40°C to 125°C, but the optimal operating temperature range is between 0°C to 85°C for maximum reliability and performance.
  • Yes, the AHEF300 is designed to withstand high-vibration environments, but it's essential to ensure the component is properly secured to the PCB and the PCB is securely fastened to the system to prevent mechanical stress.
  • To troubleshoot issues with the AHEF300, start by checking the input voltage, output voltage, and current. Verify that the component is properly soldered and the PCB layout is correct. Use an oscilloscope to check for any unusual voltage or current waveforms.

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AHEF300 Overview

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