ICL251D11MIB

Inrush Current Limiters (ICL) Overview

The ICL251D11MIB is an NTC thermistor from the Eaton ICL series, designed as an inrush current limiter. It features a zero power resistance of 25 Ohms with a tolerance of ±20% at 25°C. The component has a maximum steady-state current rating of 2 A and utilizes a B-parameter of 3000 K (B1 definition). The physical disc size is 11 mm (0.472 inches), packaged in bulk quantities.

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 self-regulating resistance reduction
• Provides robust protection against high initial surge currents in power supply applications

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary side protection
• Capacitor charging circuit limiting

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific B-parameter value (3000 K vs 3300 K) against the manufacturer datasheet, as conflicting data exists across sources. Confirm the package type is bulk and check RoHS compliance status directly with Eaton Electronics Division before finalizing procurement orders to ensure regulatory adherence.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 25 Ohm resistance and 2 A steady-state current rating are required for inrush limiting. Ensure the 11 mm form factor fits the PCB layout constraints. Consider the thermal dissipation capabilities and ambient operating conditions to guarantee reliable performance within the specified electrical limits.

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 industrial and consumer electronics to mitigate stress on downstream components caused by sudden power application, ensuring system longevity and stability.

Inrush Current Limiters (ICL) Replacement Considerations

ICL251D11MIB may be substituted with other ICL series parts offering similar 25 Ohm resistance and 2 A current ratings, provided the B-parameter and physical dimensions match the design requirements.