ESD-R-31C-1

Overview

The KEMET ESD-R-31C-1 is a ferrite toroid core designed for electromagnetic interference (EMI) suppression. It features a manganese-zinc material composition with a nickel-zinc coating, measuring 32mm in outer diameter, 19.5mm in inner diameter, and 9mm in height. This component operates within a temperature range of -25°C to +85°C and complies with RoHS standards.

Feature Summary

• Provides effective common-mode noise attenuation for high-frequency signals
• Features a durable nickel-zinc coating for environmental protection
• Designed for snap-on installation onto cables without disconnection

Applications

• Consumer electronics cable shielding
• Computer peripheral signal line filtering
• Industrial control system wiring protection

Procurement Notes

Verify the specific suffix 'C-1' against official KEMET documentation to confirm the nickel-zinc coating specification. Ensure the selected part matches the required dimensional tolerances for your cable assembly. Cross-reference the datasheet version to confirm compliance with current environmental directives.

Selection Notes

Select this component when space constraints require a low-profile toroidal design. The 19.5mm inner diameter accommodates standard cable bundles. Evaluate the impedance characteristics at your target frequency to ensure sufficient attenuation. Consider the operating temperature range relative to the application environment.

Part Context

This part belongs to the ESD-R series of commercial-grade ferrite cores. It is distinct from the ESD-SR snap-on series by its solid toroidal geometry rather than a split-core design. The series is intended for general-purpose EMI suppression in non-critical commercial applications.

Replacement Considerations

Direct substitutes include other KEMET ESD-R series parts with matching dimensions. Verify that alternative manufacturers offer comparable permeability and saturation characteristics. Ensure any replacement maintains the same physical footprint for existing enclosures.