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SMD125F-2 - LITTELFUSE

Description: LITTELFUSE - SMD125F-2 - SMD PPTC Resettable Fuse, 2920 (7351 Metric), PolySwitch Series, 15 VDC, 1.25 A, 2.5 A, 2 s

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Symbol
SMD125F-2 - LITTELFUSE - PCB symbol
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PCB Footprints
SMD125F-2 - LITTELFUSE PCB footprint - Other - Other - 2920 (7351 metric)_2024-1
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3D Models
SMD125F-2 - LITTELFUSE - 3D model - Other - 2920 (7351 metric)_2024-1
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SMD125F-2 Details

  • Manufacturer Part Number:

    SMD125F-2

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    CHIP

  • Reach Compliance Code:

    Compliant

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    8.25

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Height:

    3 mm

  • Package Length:

    7.98 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    SMT

  • Package Width:

    5.44 mm

  • Packing Method:

    TR, EMBOSSED, 13 INCH

  • Reference Standard:

    CSA; TUV; UL

  • Resistance:

    0.07 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    YES

  • Terminal Finish:

    MATTE TIN OVER NICKEL

  • Terminal Placement:

    DUAL ENDED

  • Terminal Shape:

    FLAT

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    15 V

SMD125F-2 Frequently Asked Questions (FAQs)

  • The recommended land pattern for SMD125F-2 is a rectangular pad with a size of 2.5mm x 1.25mm, with a 0.5mm gap between the pads.
  • While SMD125F-2 is rated for operation up to 125°C, it's not recommended for use in high-temperature environments above 100°C without proper derating and thermal management.
  • For high-voltage applications, ensure the fuse is rated for the maximum voltage and current of the circuit. Also, consider using a fuse with a higher voltage rating than the maximum circuit voltage to account for voltage spikes.
  • The recommended soldering profile for SMD125F-2 is a peak temperature of 260°C, with a dwell time of 10-30 seconds above 220°C.
  • While SMD125F-2 is rated for 125A, it's essential to consider the fuse's power rating, circuit impedance, and thermal management to ensure reliable operation in high-current applications.

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SMD125F-2 Overview

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