CMS3-4-R

Common Mode Chokes Overview

The CMS3-4-R is a surface-mount common mode choke manufactured by Eaton Electronics Division. It features an inductance of 88 µH measured at 100 kHz and supports a maximum current rating of 3.95 A. The component has a typical DC resistance (DCR) of 10 mΩ. Designed for two-line applications, it operates within a temperature range of -40°C to 160°C. The physical dimensions are 11.43 mm x 11.43 mm with a maximum height of 6.00 mm. It utilizes a horizontal package with four PCB terminals.

Common Mode Chokes Feature Summary

• Surface mount construction for automated assembly
• High thermal stability up to 160°C
• Low DC resistance for minimal power loss
• Two-line configuration for differential noise suppression

Common Mode Chokes Applications

• Power line filtering
• Common mode noise suppression in electronic circuits

Common Mode Chokes Procurement Notes

Verify the specific ordering suffix to ensure correct packaging format, such as tape and reel or cut tape, as these affect handling procedures. Confirm RoHS3 compliance status if required by environmental regulations. Check the manufacturer's datasheet for any recent product change notices that might impact mechanical footprint or material composition before finalizing procurement plans.

Common Mode Chokes Selection Notes

Select this component when high-temperature operation up to 160°C is required. Ensure the circuit current does not exceed the 3.95 A rating. Verify that the 88 µH inductance value meets the noise suppression requirements at 100 kHz. Confirm that the surface-mount form factor fits the available PCB space constraints.

Common Mode Chokes Part Context

This part belongs to the CMS series of common mode chokes from Eaton Electronics Division. The series offers various inductance and current ratings tailored for different power line filtering needs. The CMS3-4-R specifically addresses applications requiring moderate inductance with high current capacity in a compact surface-mount package.

Common Mode Chokes Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.