ICL131D18MIC

Inrush Current Limiters (ICL) Overview

The ICL131D18MIC is an NTC thermistor from the Eaton ICL series, designed as an inrush current limiter. It features a nominal resistance of 13 ohms with a Beta value of 3150 K (B1 definition). The component has a maximum steady-state current rating of 5.5 A and utilizes lead-style packaging with a body size of 19 mm.

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
• Designed for high-current applications requiring robust thermal stability

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific Beta constant and tolerance class against the official Eaton datasheet, as variations exist within the ICL family. Confirm that the 19 mm leaded package aligns with your PCB layout requirements. Ensure the 5.5 A current rating meets the peak load demands of the target application without exceeding thermal limits.

Inrush Current Limiters (ICL) Selection Notes

Select this part when a 13 ohm initial resistance is required to limit surge currents effectively. The 3150 K Beta value indicates specific temperature-resistance characteristics suitable for standard ambient operating conditions. Consider the 19 mm physical dimensions for adequate spacing and heat dissipation in the final assembly design.

Inrush Current Limiters (ICL) Part Context

This component belongs to the Eaton ICL series of NTC thermistors specifically engineered for inrush current limitation. These devices are distinct from general-purpose sensing thermistors, focusing instead on handling high energy pulses during startup phases while maintaining low residual resistance during normal operation.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include other Eaton ICL parts with similar resistance and current ratings, such as ICL121D18MIC or ICL161D18MIC, provided the circuit design accommodates the slight resistance variance.