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Eaton ICL121D15 12 Ohm 15 mm NTC Inrush Current Limiter
Eaton ICL121D15 12 Ohm 15 mm NTC Inrush Current Limiter

Eaton ICL121D15 12 Ohm 15 mm NTC Inrush Current Limiter

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pEaton ICL121D15 — NTC inrush current limiter, 12 Ω at 25 °C, 5 A steady./p
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    Eaton ICL121D15 12 Ohm 15 mm NTC Inrush Current Limiter

    Eaton ICL121D15 12 Ohm 15 mm NTC Inrush Current Limiter belongs to the Eaton range. It holds 12 ohm at 25 °C, passes up to 5 A steady, on a 15 mm disk.

    Technical Data

    ParameterRating
    ParameterValue
    Orderable part numberICL121D15BIM (5.0 mm pitch) / ICL121D15CIM (7.5 mm pitch)
    Zero-power resistance R2512 Ohm at +25 C
    ToleranceM = plus/minus 20 %
    Max steady current5 A
    Beta (25/50)3000 K
    Max capacitance at 240 Vac500 uF
    Dissipation factor17 mW/C
    Thermal time constant80 s
    BodyD15 disk, epoxy sealed radial
    Operating temperature-40 C to +200 C
    EnvironmentalHalogen free, Pb-free

    Design 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 3000 K describes how sharply resistance falls with temperature.
    • Continuous current must stay at or below 5 A or the disk self-heats.

    Where It Is Used

    Typical places this thermistor turns up:

    • EV
    • charging

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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