ICL122D11MIB

Inrush Current Limiters (ICL) Overview

The ICL122D11MIB is an NTC thermistor from the Eaton ICL series, designed as an inrush current limiter. It features a nominal resistance of 120 Ohms with a ±20% tolerance and a Beta value of 3400 K. The component has a maximum steady-state current rating of 1 A and utilizes an I-lead configuration with an 11 mm diameter form factor. It is supplied in bulk packaging.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits during power-up
• Utilizes Negative Temperature Coefficient (NTC) characteristics for temperature-dependent resistance
• Features an I-lead configuration suitable for through-hole mounting applications

Inrush Current Limiters (ICL) Applications

• Inrush current limiting in power supply inputs
• Protection of electronic circuits against high initial charging currents
• Temperature monitoring within battery management systems

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific Beta constant and tolerance class against the official Eaton datasheet before integration. Confirm that the 11 mm diameter and I-lead style match the target PCB footprint and thermal requirements. Ensure the 1 A steady-state current rating exceeds the operational load to prevent component failure.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 120 Ohm cold resistance is required for inrush suppression. The 3400 K Beta value indicates specific thermal sensitivity suitable for standard ambient conditions. The 11 mm size offers a balance between thermal mass and physical space constraints compared to smaller or larger variants in the ICL family.

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 widely used in consumer electronics and industrial power supplies to mitigate stress on rectifiers and capacitors during startup phases.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include other ICL series parts with matching 120 Ohm resistance and similar Beta values, such as the ICL102D11MIB or ICL151D11MIB, provided their current ratings and physical dimensions are compatible with the design.