ICL181D18MIC

Inrush Current Limiters (ICL) Overview

The ICL181D18MIC is an NTC inrush current limiter from the Eaton ICL series. It features a nominal resistance of 18 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 5 A and has a body diameter of 19 mm (0.748 inches). It utilizes a B-parameter of 3200 K and adheres to the B1 beta definition.

Inrush Current Limiters (ICL) Feature Summary

• Negative temperature coefficient thermistor construction for inrush current limiting
• Lead wire termination configuration
• Bulk packaging format

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• Capacitor charging control

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific datasheet version for thermal dissipation characteristics and energy absorption limits. Confirm that the 5 A steady-state rating aligns with the target circuit's operational requirements. Ensure lead spacing matches the PCB layout constraints.

Inrush Current Limiters (ICL) Selection Notes

Select this component when an 18 Ohm initial resistance is required to limit surge currents. The 5 A continuous current rating suits moderate power applications. Verify compatibility with the system's voltage levels and ambient operating temperatures.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL family of NTC thermistors designed specifically for inrush current limitation. These components are engineered to protect electronic equipment from high initial charging currents during power-up sequences.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference other ICL series parts with matching 18 Ohm resistance and 5 A current ratings. Verify physical dimensions and lead spacing compatibility before substitution.