ESD-R-38SR-P

Overview

The KEMET ESD-R-38SR-P is a solid free-hanging ferrite core designed for electromagnetic interference suppression. It features a toroid configuration constructed from manganese-zinc (Mn-Zn) material, suitable for operation at temperatures up to 85°C. The component has an inner diameter of 18.00 mm and an outer diameter of 39.50 mm, with a length of 14.00 mm. It is RoHS compliant and meets UL94 V-2 qualification standards.

Feature Summary

• Solid free-hanging toroid design for easy installation on cables
• Manganese-zinc material composition for effective high-frequency noise suppression
• Compliant with UL94 V-2 safety standards

Applications

• Suppression of electromagnetic interference in round cable assemblies
• High impedance filtering in electronic circuits
• Noise reduction in automotive or industrial wiring harnesses

Procurement Notes

Verify the specific Mn-Zn material grade and temperature rating against application requirements. Confirm that the 18 mm inner diameter accommodates the target cable bundle without excessive force. Ensure compliance with UL94 V-2 flammability ratings if required by the end-use environment. Cross-reference datasheet dimensions to ensure physical fit within the assembly constraints.

Selection Notes

Select this component when a solid toroid shape is preferred over split-core designs for permanent installations. The Mn-Zn material offers high permeability suitable for lower frequency noise suppression compared to Ni-Zn alternatives. Consider the 85°C maximum operating temperature limit for thermal environments. Verify cable diameter compatibility before integration into the final product design.

Part Context

This part belongs to KEMET's ferrite core family, specifically engineered for cable noise suppression. It represents a standard solid toroid form factor widely used in EMI mitigation applications. The series provides reliable performance for suppressing common-mode noise on power and signal lines.

Replacement Considerations

Direct substitutes include other Mn-Zn solid toroids with matching 18 mm ID and 39.5 mm OD dimensions. Verify material permeability curves and temperature coefficients when considering alternative manufacturers. Ensure any replacement maintains UL94 V-2 certification if safety compliance is mandatory.