CMS1-11-R

Common Mode Chokes Overview

The CMS1-11-R is a surface-mount common mode choke from the Eaton Electronics CMS Series. It features an inductance of 100 µH at 100 kHz and a maximum DC resistance of 0.07 ohms. The component supports a DC current rating of 1.35 A and exhibits a leakage inductance of 1.1 µH. Its physical dimensions are 7.2 mm x 9.4 mm x 2.6 mm, utilizing a shielded wirewound construction with iron powder core material for power line applications.

Common Mode Chokes Feature Summary

• Surface-mount design for automated PCB assembly
• Shielded wirewound construction to minimize electromagnetic interference
• Iron powder core material for stable performance under load

Common Mode Chokes Applications

• Power line filtering in electronic circuits
• Common mode noise suppression in signal lines
• EMI reduction in compact electronic devices

Common Mode Chokes Procurement Notes

Verify the specific suffix (e.g., -R) to confirm reel packaging requirements. Confirm that the 1.35A current rating aligns with thermal management capabilities in the final assembly. Ensure compatibility with standard surface-mount reflow soldering profiles. Cross-reference the 0.07 ohm DCR limit against circuit loss tolerances. Validate the 7.2x9.4mm footprint against the target PCB layout constraints.

Common Mode Chokes Selection Notes

Select this component when space-constrained designs require effective common mode noise attenuation without sacrificing current capacity. The 100 µH value targets typical EMI frequencies in power applications. Consider the low profile height for thin enclosures. Evaluate the 1.35A rating against peak operational currents to prevent saturation. The shielded nature reduces crosstalk risks in dense layouts.

Common Mode Chokes Part Context

This part belongs to the CMS Series of common mode chokes by Eaton Electronics Division. The series offers various inductance values and current ratings tailored for surface-mount applications. The CMS1-11-R specifically addresses mid-range noise suppression needs in portable and industrial electronics requiring reliable EMI control.

Common Mode Chokes Replacement Considerations

Direct substitutes include other 100 µH surface-mount common mode chokes with similar 1.35A ratings and compatible footprints. Verify equivalent DCR and leakage inductance specifications to maintain circuit performance. Check for identical mounting dimensions and thermal characteristics before substitution.