ICL500D09MIB

Inrush Current Limiters (ICL) Overview

The ICL500D09MIB is a negative temperature coefficient (NTC) thermistor from the Eaton ICL series, designed as an inrush current limiter. It features a nominal resistance of 5 Ohms with a tolerance of ±20%. The component has a B-parameter of 2550 K and supports a steady-state current of 3.5 A. Its physical size is 9.5 mm (0.374 inches). The device utilizes lead-style construction for through-hole mounting.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits during power-up
• Utilizes NTC material properties to reduce resistance as temperature increases
• Designed for high surge energy absorption capabilities

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific B-parameter value against the official Eaton datasheet, as some sources list 2550 K while others may reference different beta definitions. Confirm the steady-state current rating of 3.5 A matches your circuit requirements. Ensure the 9.5 mm body size fits your PCB layout constraints. Check RoHS compliance status directly from the manufacturer documentation before finalizing procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 5 Ohm initial resistance is required to limit inrush current effectively. The 3.5 A steady-state rating suits moderate power applications. Consider the 9.5 mm form factor for mechanical clearance. Compare against other ICL family members if higher current or different resistance values are needed. Verify thermal dissipation requirements in the final assembly environment.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL series of NTC thermistors specifically engineered for inrush current limiting. These components are distinct from standard temperature sensing thermistors due to their optimized surge handling characteristics. The ICL500D09MIB represents a mid-range resistance option within the 9.5 mm package lineup, balancing initial impedance and thermal mass for common industrial power applications.

Inrush Current Limiters (ICL) Replacement Considerations

Consult Eaton's official substitution guide for equivalent parts within the ICL family. Cross-reference resistance values and steady-state currents carefully. Verify that alternative components match the 9.5 mm dimensional constraints. Ensure beta parameter compatibility if precise thermal tracking is required by the design.