ESD-R-27S

Overview

The KEMET ESD-R-27S is a solid free-hanging ferrite toroid designed for electromagnetic interference suppression. Constructed from Mn-Zn material, it features an inner diameter of 19 mm, an outer diameter of 27 mm, and a length of 15 mm. The component is coated to enhance durability and environmental resistance. It serves as a passive filter element for cable assemblies.

Feature Summary

• Solid free-hanging toroidal geometry for easy cable installation
• Mn-Zn core material optimized for high-frequency noise attenuation
• Protective coating provides environmental resilience

Applications

• Cable assembly EMI suppression
• Electrostatic discharge (ESD) protection circuits
• Signal line filtering in electronic equipment

Procurement Notes

Verify the specific Mn-Zn composition and coating type against the manufacturer datasheet to ensure compatibility with the target frequency range and environmental conditions. Confirm physical dimensions match the design constraints. Ensure the supplier provides traceability documentation for the ferrite material properties.

Selection Notes

Select this component based on the required inner diameter to fit the target cable bundle. Evaluate the Mn-Zn material characteristics against the expected noise spectrum. Consider the coated finish for applications requiring moisture or chemical resistance compared to uncoated alternatives.

Part Context

This component belongs to the ESD-R series of cable ferrites manufactured by KEMET. These parts are engineered specifically for suppressing common-mode noise on cables without requiring PCB mounting space. They function as passive magnetic components that increase impedance at high frequencies.

Replacement Considerations

Substitute only with identical Mn-Zn toroids matching the 19mm ID, 27mm OD, and 15mm length specifications. Verify that alternative materials offer equivalent permeability and saturation characteristics for the intended application.