ESD-R-12CM

Overview

The KEMET ESD-R-12CM is a nickel-zinc (NiZn) toroidal ferrite core designed for round cables. It features a coated construction with an inner diameter of 7 mm and an outer diameter of 12 mm. The component operates within a temperature range of -25 °C to +85 °C and provides effective electromagnetic interference suppression at frequencies up to 300 MHz.

Feature Summary

• Coated nickel-zinc material for corrosion resistance
• Snap-on toroidal design for easy cable installation
• Optimized high-frequency noise attenuation

Applications

• Consumer electronics cable shielding
• Industrial equipment signal line protection
• Automotive wiring harness EMI reduction

Procurement Notes

Verify the specific suffix 'CM' against official KEMET documentation to confirm coating specifications and dimensional tolerances. Ensure the selected variant matches the required operating temperature range of -25 °C to +85 °C for your application environment.

Selection Notes

Select this component when a 7 mm inner diameter fits the target cable bundle. The NiZn composition offers higher resistivity than MnZn types, making it suitable for higher frequency applications up to 300 MHz compared to standard iron powder cores.

Part Context

This part belongs to the ESD-R series of solid snap-on ferrite cores from KEMET. These components are engineered for rapid deployment on existing cable assemblies without requiring disassembly or specialized tools, providing immediate common-mode noise suppression.

Replacement Considerations

Cross-reference with other KEMET ESD-R series parts sharing identical 7 mm inner diameter and 12 mm outer dimensions. Verify that substitute materials maintain equivalent impedance characteristics at 300 MHz.