ESD-R-38D

Overview

The KEMET ESD-R-38D is a solid toroidal ferrite core designed for electromagnetic interference suppression on cables. It features an inner diameter of 17.9 mm and an outer diameter of 42.4 mm, with a length of 16 mm. The component operates effectively up to a frequency of 100 MHz and has a maximum operating temperature of +85°C. It is constructed from manganese zinc (MnZn) material and provides an impedance of 80 ohms at 100 MHz.

Feature Summary

• Solid toroidal design for secure cable clamping
• Manganese zinc composition for effective high-frequency noise attenuation
• Openable structure allows installation on existing wiring harnesses

Applications

• Suppression of electromagnetic interference on circular cables
• Noise filtering in electronic equipment cabling
• Signal integrity protection in industrial control systems

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as ESD-R-38D-B may exhibit different thermal or frequency characteristics compared to the base model. Confirm compliance with RoHS standards and ensure the selected part matches the required cable diameter and impedance specifications for the target application environment.

Selection Notes

Select this component based on the need for a split-core ferrite that accommodates cables with an inner diameter up to 17.9 mm. Consider the MnZn material properties for applications requiring significant attenuation around 100 MHz. Ensure the operating temperature range aligns with the environmental conditions of the installation site.

Part Context

This component belongs to the KEMET ESD-R series of cable ferrites, which are widely used for common-mode noise suppression. The series offers various sizes and materials to suit different cable diameters and frequency requirements, providing a standardized solution for EMI mitigation in diverse electronic assemblies.

Replacement Considerations

The ESD-R-38D-B is a related variant within the same series. Verify if the specific performance differences, such as the lower maximum operating temperature of +60°C associated with the -B suffix, impact the suitability for the intended application before substitution.