ICL680D20MIC

Inrush Current Limiters (ICL) Overview

The ICL680D20MIC is a Negative Temperature Coefficient (NTC) thermistor from the Eaton ICL family, designed for inrush current limiting. It features a nominal resistance of 6.8 Ohms and a B-parameter of 3100 K. The component has a diameter of 20 mm with a maximum steady-state current rating of 8 A. Lead spacing is specified at 7.50 mm. Tolerance is ±20%.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective inrush current limitation during power-up sequences
• Utilizes NTC material characteristics for automatic resistance adjustment based on temperature
• Designed for robust performance in high-current applications

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific B-parameter value against official Eaton documentation, as source data indicates potential variation between 3050 K and 3100 K for similar model numbers. Confirm lead spacing and diameter dimensions match the design requirements. Ensure the 8 A steady-state current rating is sufficient for the target application's continuous load conditions.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 6.8 Ohm initial resistance is required to limit peak charging currents. The 20 mm diameter supports up to 8 A continuous current. Verify that the B1 beta definition and J tolerance align with the thermal management strategy of the host circuit.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL series of NTC thermistors specifically engineered for inrush current control. These components are widely used in electronic power supplies and industrial equipment to protect downstream components from high initial surge currents.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other ICL family members such as ICL600D20MIC or ICL800D20MIC if resistance values differ. Verify that substitute parts maintain the same 20 mm diameter and 8 A current rating to ensure mechanical and electrical compatibility.