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Eaton ICL100D20 1 Ohm 20 mm NTC Inrush Current Limiter
Eaton ICL100D20 1 Ohm 20 mm NTC Inrush Current Limiter

Eaton ICL100D20 1 Ohm 20 mm NTC Inrush Current Limiter

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pEaton ICL100D20 — NTC inrush current limiter, 1 Ω at 25 °C, 16 A steady./p
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    Eaton ICL100D20 1 Ohm 20 mm NTC Inrush Current Limiter

    The ICL100D20 from Eaton holds 1 ohm at 25 °C, passes up to 16 A steady, on a 20 mm disk.

    Technical Data

    ParameterRating
    ParameterValue
    Orderable part numberICL100D20BIM (5.0 mm pitch) / ICL100D20CIM (7.5 mm pitch)
    Zero-power resistance R251 Ohm at +25 C
    ToleranceM = plus/minus 20 %
    Max steady current16 A
    Beta (25/50)2700 K
    Max capacitance at 240 Vac1,200 uF
    Dissipation factor30 mW/C
    Thermal time constant100 s
    BodyD20 disk, epoxy sealed radial
    Operating temperature-40 C to +200 C
    EnvironmentalHalogen free, Pb-free

    Practical Notes

    • Limits capacitor and transformer inrush by dropping resistance as it heats.
    • It does not interrupt a fault — pair it with a fuse or breaker upstream.
    • Leave cooling time between power cycles so the disk returns to high resistance.
    • Resistance at 25 °C sets the cold-start limiting; the hot value is far lower.
    • A disk rated for a higher steady current runs cooler at the same load.
    • Beta value 2700 K describes how sharply resistance falls with temperature.
    • Continuous current must stay at or below 16 A or the disk self-heats.

    Application Scenarios

    Common installation contexts include:

    • EV
    • charging

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