ICL222R018-01

Inrush Current Limiters (ICL) Overview

The Honeywell ICL222R018-01 is an inrush current limiter thermistor designed for circuit protection. It features a nominal resistance of 2 Ohms at 25°C with a tolerance of ±20%. The device supports a maximum steady-state current of 18 A and exhibits a low hot resistance of 30 mOhms. Physical dimensions include a diameter of 22 mm (0.866 inches) and lead spacing of 7.87 mm (0.310 inches). Operating temperature range spans from -40°C to +185°C.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limiting to protect sensitive electronic components during power-up.
• Features low residual resistance to minimize power loss during normal steady-state operation.
• Constructed with axial leads for through-hole mounting applications.

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify component authenticity due to obsolete status. Confirm availability of authorized substitutes such as SL222R018. Ensure replacement parts meet identical electrical specifications including resistance, current rating, and thermal characteristics. Check RoHS compliance requirements for the specific application environment.

Inrush Current Limiters (ICL) Selection Notes

Select based on required steady-state current capacity and initial resistance value. Ensure the operating temperature range meets environmental demands. Verify physical footprint compatibility with existing PCB layouts. Consider thermal derating curves for high ambient temperature scenarios.

Inrush Current Limiters (ICL) Part Context

This component belongs to the ICL series of inrush current limiters manufactured by Honeywell Sensing and Productivity Solutions. These devices utilize negative temperature coefficient (NTC) thermistor technology to manage transient currents effectively.

Inrush Current Limiters (ICL) Replacement Considerations

The ICL222R018-01 is listed as obsolete. Public confirmed substitute part numbers include SL222R018. Verify that substitute components match the original electrical parameters before integration.

Inrush Current Limiters (ICL) FAQ

What is the hot resistance of this component?

The hot resistance is specified as 30 mOhms.

Is this component RoHS compliant?

Yes, the component is ROHS3 Compliant.