ICL201D15MIC

Inrush Current Limiters (ICL) Overview

The ICL201D15MIC is an inrush current limiter from the Eaton ICL family, classified as a Negative Temperature Coefficient (NTC) thermistor. It features a nominal resistance of 20 Ohms with a tolerance of ±20%. The component has a B-parameter of 3150 K and is designed for a maximum steady-state current of 4 Amperes. Its physical dimensions are specified as 16 mm in diameter. The device utilizes leaded construction and is supplied in bulk packaging.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences to protect downstream circuitry.
• Exhibits negative temperature coefficient characteristics where resistance decreases significantly as self-heating occurs.
• Features robust leaded construction suitable for through-hole mounting on printed circuit boards.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific B-parameter value of 3150 K against the official datasheet, as some sources may list variations. Confirm that the 4 A current rating aligns with the thermal management requirements of the target application. Ensure the 16 mm package size fits the designated PCB footprint. Check RoHS compliance status directly from the manufacturer's documentation before finalizing procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 20 Ohm initial resistance is required to limit surge current in low-voltage applications. The 4 A continuous current rating dictates suitability for moderate power loads. Consider the 3150 K beta value for accurate temperature-resistance modeling. Evaluate the 16 mm form factor against available board space constraints compared to smaller or larger variants in the ICL series.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL series of inrush current limiters. These components are specialized NTC thermistors engineered specifically for transient current suppression rather than general temperature sensing. The series offers various resistance and current ratings to match different power supply architectures and load profiles.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other Eaton ICL parts offering similar 20 Ohm resistance and 4 A current handling capabilities. Verify dimensional compatibility if substituting with components from different manufacturers. Ensure equivalent B-parameter values are maintained for consistent thermal performance in the circuit design.