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SMD185F-2 - LITTELFUSE

Description: Littelfuse 1.85A Resettable Surface Mount Fuse, 33V dc

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Symbol
SMD185F-2 - LITTELFUSE - PCB symbol
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PCB Footprints
SMD185F-2 - LITTELFUSE PCB footprint - Other - Other - SMD150F
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3D Models
SMD185F-2 - LITTELFUSE - 3D model - Other - SMD150F
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SMD185F-2 Details

  • Manufacturer Part Number:

    SMD185F-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:

    9.4 mm

  • Package Shape:

    RECTANGULAR PACKAGE

  • Package Style:

    SMT

  • Package Width:

    6.71 mm

  • Packing Method:

    TR, EMBOSSED, 13 INCH

  • Reference Standard:

    CSA; TUV; UL

  • Resistance:

    0.065 Ω

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn) - with Nickel (Ni) barrier

  • Terminal Placement:

    DUAL ENDED

  • Terminal Shape:

    FLAT

  • Thermistor Application:

    OVERCURRENT PROTECTION

  • Working Voltage:

    33 V

SMD185F-2 Frequently Asked Questions (FAQs)

  • The recommended land pattern for SMD185F-2 is a rectangular pad with a size of 2.5mm x 1.5mm, with a 0.5mm gap between the pads.
  • While SMD185F-2 is rated for operation up to 125°C, it's recommended to derate the fuse's current rating by 2.5% for every 10°C above 85°C to ensure reliable operation.
  • The voltage drop across the fuse during fault conditions can be significant. Ensure that your circuit design takes into account the fuse's voltage drop to prevent unwanted tripping or malfunction.
  • While SMD185F-2 is designed to be robust, it's still important to ensure that the PCB is properly secured and the fuse is properly soldered to prevent mechanical stress and vibration-induced failures.
  • The recommended soldering profile for SMD185F-2 is a peak temperature of 260°C, with a dwell time of 10-30 seconds above 220°C.

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SMD185F-2 Overview

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