ICL400D30MIC

Inrush Current Limiters (ICL) Overview

The Eaton ICL400D30MIC is an NTC thermistor from the ICL family, designed as an inrush current limiter. It features a nominal resistance of 4 Ohms at 25°C with a tolerance of ±20%. The component utilizes a Beta value of 3150 K (B1 definition) and supports a steady-state current of 16 A. Its physical dimensions are 34.00 mm (1.339 inches). The device employs I-lead configuration and is supplied in bulk packaging.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits during power-up.
• Utilizes negative temperature coefficient characteristics for automatic resistance adjustment.
• Supports high steady-state current handling capabilities.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• Motor drive systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific Beta value variant, as documentation indicates both 2900 K and 3150 K definitions for similar part numbers. Confirm the lead type matches the I-lead specification required for the target application. Ensure the 16 A steady-state current rating aligns with the circuit design requirements before procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required 4 Ohm initial resistance and 16 A current capacity. Consider the 34 mm length for adequate thermal dissipation and mechanical clearance. Verify compatibility with the system's voltage ratings and the specific Beta constant needed for accurate temperature compensation or limiting behavior.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL series of inrush current limiters. These components are specifically engineered to mitigate high surge currents that occur when capacitive loads are connected to power sources. The series offers various resistance and size options to suit different power levels.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other Eaton ICL series parts such as ICL400D18MIC or ICL400D20MIC if dimensional constraints differ. Ensure substitute parts maintain the same 4 Ohm resistance and 16 A current rating to preserve circuit protection performance.