ESD-R-57

Overview

The KEMET ESD-R-57D is a solid toroidal ferrite core designed for electromagnetic interference suppression. It features a NIZn material composition and a circular geometry with free-hanging installation. The component has an inner diameter of 36.00 mm, an outer diameter of 57.00 mm, and a length of 20.00 mm. It is classified as a cable ferrite within the ESD-R series. The part is RoHS3 compliant and currently active in production.

Feature Summary

• Solid construction provides durable physical integrity for cable management applications.
• NIZn material composition supports effective high-frequency noise attenuation.
• Free-hanging design allows flexible integration without rigid mounting constraints.

Applications

• Electromagnetic interference suppression in consumer electronics
• Cable noise filtering for industrial equipment
• Signal integrity enhancement in data transmission lines

Procurement Notes

Verify the specific suffix against official documentation to confirm exact dimensional tolerances and material grades. Confirm compliance requirements such as RoHS3 status directly with the manufacturer or authorized distributors prior to ordering. Ensure that the selected variant matches the required inner diameter specifications for the target cable assembly.

Selection Notes

Select this component based on the required inner diameter of 36.00 mm to accommodate specific cable bundles. Evaluate the NIZn material properties against the target frequency range for optimal impedance characteristics. Consider the solid toroidal form factor for applications requiring robust mechanical stability and simple installation methods.

Part Context

This component belongs to the KEMET ESD-R series of solid toroidal ferrite cores. These cores are engineered for general-purpose electromagnetic interference suppression across various electronic systems. The series offers standardized dimensions to facilitate consistent integration into diverse hardware designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching critical parameters such as inner diameter, material type, and overall dimensions before considering alternative components.