ESD-R-47-P

Overview

The KEMET ESD-R-47-P is a manganese-zinc (Mn-Zn) ferrite toroidal core designed for electromagnetic interference suppression. It features a coated surface finish and specific physical dimensions of 48.5 mm outer diameter, 26 mm inner diameter, and 16 mm height. The component operates within a frequency range up to 10 MHz and supports temperatures from -25°C to +85°C.

Feature Summary

• Utilizes Mn-Zn ferrite material for effective high-frequency noise attenuation
• Features a protective coating on the toroidal surface
• Engineered for compact footprint integration in ESD protection circuits

Applications

• Electrostatic discharge (ESD) suppression modules
• Common mode choke applications in signal lines
• EMI filtering in consumer electronics interfaces

Procurement Notes

Verify the exact part number against official KEMET documentation to ensure compatibility with design specifications. Confirm that the coated variant matches environmental requirements. Cross-reference dimensional tolerances with mechanical constraints before finalizing procurement decisions.

Selection Notes

Select this component when space-constrained EMI suppression is required. The Mn-Zn composition offers high permeability suitable for lower frequency noise compared to Ni-Zn alternatives. Ensure the operating temperature range aligns with the application environment.

Part Context

This part belongs to the ESD-R series of ferrite rings manufactured by KEMET. These components are distinct from general-purpose inductors, serving specifically as passive magnetic elements for noise absorption rather than energy storage.

Replacement Considerations

Consult KEMET technical support for verified cross-references. Substitution requires matching Mn-Zn material properties and precise dimensional fit.