EXC-14CE121U

Common Mode Chokes Overview

The Panasonic EXC-14CE121U is a surface-mount common mode choke filter designed for noise suppression in electronic circuits. It features a ferrite core and a four-terminal configuration within an 0302 package size. The component provides a nominal impedance of 120 ohms at standard test frequencies. It supports a maximum DC current rating of 0.1 amperes and operates reliably within a temperature range of -40°C to +85°C. The device utilizes a wound-type construction suitable for compact PCB layouts requiring effective differential mode attenuation.

Common Mode Chokes Feature Summary

• Four-terminal SMD architecture for enhanced grounding and signal integrity
• Ferrite core construction for high-frequency noise attenuation
• Compact 0302 footprint optimized for space-constrained designs

Common Mode Chokes Applications

• High-speed data line noise filtering
• USB interface circuit protection
• HDMI signal path interference suppression

Common Mode Chokes Procurement Notes

Verify the specific suffix codes against official Panasonic datasheets to confirm terminal plating and packaging variations. Ensure the selected variant matches the required impedance tolerance and current ratings for the target application. Cross-reference manufacturer part numbers with distributor catalogs to avoid obsolete or discontinued stock issues during procurement.

Common Mode Chokes Selection Notes

Select this component when designing circuits with strict spatial limitations due to its small 0302 package dimensions. Evaluate the 120-ohm impedance value against the target frequency spectrum to ensure adequate noise reduction. Confirm that the 0.1A current rating exceeds the maximum operating current of the protected lines to prevent saturation and performance degradation under load conditions.

Common Mode Chokes Part Context

This component belongs to the Panasonic EXC series of surface-mount common mode chokes. These filters are engineered for use in portable electronics and communication devices where miniaturization is critical. The series offers various impedance values and current ratings to accommodate different signal integrity requirements across multiple industrial and consumer applications.

Common Mode Chokes Replacement Considerations

Consult official Panasonic substitution guides for compatible alternatives. Verify pin compatibility and impedance characteristics before integrating substitute components from other manufacturers.