CMS3-12-R

Common Mode Chokes Overview

The CMS3-12-R is a surface mount common mode choke from the Eaton CMS series. It features an inductance of 790 µH at 100 kHz and supports a current rating of 1.05 A. The component has a typical DC resistance (DCR) of 145 mΩ. Its physical dimensions are 11.43 mm x 11.43 mm with a maximum height of 6.10 mm. Designed for two-line applications, it utilizes a shielded construction to minimize electromagnetic interference.

Common Mode Chokes Feature Summary

• Surface mount design for automated PCB assembly
• Shielded magnetic structure for EMI suppression
• Two-line configuration for differential noise filtering

Common Mode Chokes Applications

• Power supply input filtering
• Data line noise suppression
• General purpose EMI mitigation in compact electronics

Common Mode Chokes Procurement Notes

Verify the specific suffix against official Eaton documentation to confirm exact electrical tolerances and packaging specifications. Ensure the procurement source provides valid manufacturer traceability. Confirm that the component meets required RoHS compliance standards for the intended market. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing processes.

Common Mode Chokes Selection Notes

Select this component when space-constrained designs require surface mount common mode chokes. Evaluate the 1.05 A current rating against peak load requirements. Consider the 790 µH inductance value for target frequency attenuation. Verify footprint compatibility with existing PCB layout constraints before finalizing the design.

Common Mode Chokes Part Context

This part belongs to the Eaton CMS series of common mode inductors. The series offers various inductance values in a standardized small outline package. It serves as a passive filter component for suppressing high-frequency noise in dual-conductor circuits within consumer and industrial electronic devices.

Common Mode Chokes Replacement Considerations

Consult Eaton's official cross-reference guides for verified substitutes. Ensure replacement parts match the 11.43 mm x 11.43 mm footprint and 6.10 mm height limits. Verify equivalent inductance and current ratings to maintain circuit performance integrity.