ICL121D20MIC

Inrush Current Limiters (ICL) Overview

The ICL121D20MIC is a Negative Temperature Coefficient (NTC) inrush current limiter from the Eaton Electronics ICL series. It features a nominal resistance of 12 ohms and a beta value of 3100 K with J tolerance. The component has a physical size of 20 mm, utilizes I-lead configuration, and follows B1 beta definition standards. Packaged in bulk quantities of 100 units, it is designed for high-reliability applications requiring precise thermal response characteristics.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective reduction of initial surge currents during power-up sequences
• Utilizes NTC material properties for automatic resistance adjustment based on temperature
• Features standardized lead configuration for reliable circuit board integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• Capacitor charging control

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific beta tolerance and lead type against official datasheets before integration. Confirm RoHS compliance status and manufacturing origin details. Ensure storage conditions maintain component integrity prior to soldering processes.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 12-ohm nominal resistance at standard reference temperatures is required. Consider the 20 mm body size for adequate heat dissipation capabilities. Evaluate the 3100 K beta constant for compatibility with existing thermal management designs.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL family of thermistors, specifically engineered for inrush current limiting. The series offers various resistance values and sizes to suit different power handling requirements while maintaining consistent performance characteristics across the product line.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other ICL series parts offering similar 12-ohm resistance and 20 mm dimensions. Verify electrical parameters match exactly before substitution.