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Eaton ICL161D18 16 Ohm 18 mm NTC Inrush Current Limiter
Eaton ICL161D18 16 Ohm 18 mm NTC Inrush Current Limiter

Eaton ICL161D18 16 Ohm 18 mm NTC Inrush Current Limiter

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pEaton ICL161D18 — NTC inrush current limiter, 16 Ω at 25 °C, 5 A steady./p
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    Eaton ICL161D18 16 Ohm 18 mm NTC Inrush Current Limiter

    The ICL161D18 from Eaton holds 16 ohm at 25 °C, passes up to 5 A steady, on a 18 mm disk.

    Technical Data

    ParameterRating
    ParameterValue
    Orderable part numberICL161D18BIM (5.0 mm pitch) / ICL161D18CIM (7.5 mm pitch)
    Zero-power resistance R2516 Ohm at +25 C
    ToleranceM = plus/minus 20 %
    Max steady current5 A
    Beta (25/50)3200 K
    Max capacitance at 240 Vac800 uF
    Dissipation factor25 mW/C
    Thermal time constant90 s
    BodyD18 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 3200 K describes how sharply resistance falls with temperature.
    • Continuous current must stay at or below 5 A or the disk self-heats.

    Application Scenarios

    Common installation contexts include:

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