ESD-R-57M-H

Overview

The KEMET ESD-R-57M-H is a solid MnZn ferrite toroid core designed for electromagnetic interference suppression. It features an inner diameter of 33.2 mm, an outer diameter of 61 mm, and an external length of 25 mm. The component operates within a temperature range of -40°C to +120°C and is rated for frequencies up to 10 MHz. It complies with RoHS3 standards and is supplied in bulk packaging.

Feature Summary

• Solid manganese zinc (MnZn) construction for high magnetic permeability
• Toroidal geometry optimized for round cable wrapping
• Designed for free-hanging installation without mechanical mounting hardware

Applications

• Suppression of common-mode noise on power cables
• EMI filtering for industrial equipment wiring
• Noise reduction in automotive electrical harnesses

Procurement Notes

Verify the specific suffix 'H' against official KEMET documentation to confirm material grade and dimensional tolerances. Ensure the required inner diameter matches the 33.2 mm specification for the target cable bundle. Confirm compliance requirements such as RoHS3 status prior to final procurement approval.

Selection Notes

Select this component when the application requires a solid core that does not split open for installation. The 33.2 mm inner diameter dictates the maximum cable bundle size. Verify that the operating frequency environment aligns with the 10 MHz rating and that the ambient temperature remains within the specified thermal limits.

Part Context

This part belongs to the KEMET ESD-R-H series of solid ferrite cores. Unlike clamshell designs, these units are manufactured as single-piece rings. They provide consistent magnetic properties across the entire circumference, which is critical for uniform noise attenuation in sensitive electronic environments.

Replacement Considerations

No public substitute part numbers are documented for this specific model.