CMS1-12-R

Common Mode Chokes Overview

The CMS1-12-R is a surface mount common mode choke manufactured by Eaton - Electronics Division. It features an inductance of 131 µH at 100 kHz and supports a current rating of 1.15 A. The component has a typical DC resistance (DCR) of 100 mOhm. It is designed for two-line applications and utilizes a horizontal pad configuration with four pads. The operating temperature range extends from -40°C to 160°C.

Common Mode Chokes Feature Summary

• Surface mount construction for automated assembly
• Common mode noise suppression for two-line circuits
• High thermal stability up to 160°C

Common Mode Chokes Applications

• Signal line filtering in embedded systems
• Noise suppression in data communication interfaces
• EMI reduction in industrial control modules

Common Mode Chokes Procurement Notes

Verify the specific package dimensions and pinout against the official Eaton datasheet before integration. Confirm that the 1.15 A current rating meets the operational requirements of the target circuit under maximum ambient temperature conditions. Ensure compatibility with standard reflow soldering profiles for surface mount components.

Common Mode Chokes Selection Notes

Select this component when high-frequency common mode noise attenuation is required in space-constrained designs. The 131 µH inductance value provides effective filtering for specific frequency bands. Consider the 100 mOhm DCR impact on signal integrity and power loss in low-voltage applications. Verify availability of tape and reel packaging for high-volume production lines.

Common Mode Chokes Part Context

This component belongs to the CMS series of common mode inductors from Eaton - Electronics Division. These devices are engineered for surface mount technology, offering compact solutions for electromagnetic interference mitigation. The series is widely used in electronics requiring reliable noise suppression in small form factors.

Common Mode Chokes Replacement Considerations

Check for direct substitutes within the CMS series or equivalent inductance values from other manufacturers. Ensure replacement parts match the 131 µH inductance, 1.15 A current rating, and 100 mOhm DCR specifications. Verify package footprint compatibility to avoid PCB redesign.