ESD-R-18SD

Overview

The KEMET ESD-R-18SD is a manganese-zinc (MnZn) ferrite toroidal core designed for electromagnetic interference suppression and inductor applications. It features an outer diameter of 18 mm and a height of 6 mm. The component operates within a temperature range of -40°C to +125°C and complies with RoHS standards.

Feature Summary

• Constructed from high-permeability manganese-zinc ferrite material for effective noise attenuation
• Toroidal geometry provides efficient magnetic flux containment and reduced external field leakage
• RoHS compliant construction supports environmentally conscious manufacturing processes

Applications

• Common mode chokes for signal line filtering
• Inductor cores for power supply circuits
• Electromagnetic interference suppression components

Procurement Notes

Verify the specific MnZn permeability grade and initial inductance factor against your circuit requirements, as these values can vary between production batches. Confirm that the physical dimensions strictly match your winding tooling or bobbin specifications before finalizing procurement orders.

Selection Notes

Select this component when a compact 18 mm toroidal form factor is required for high-frequency noise reduction. Ensure the operating frequency aligns with the MnZn material characteristics and verify that the thermal environment remains within the specified -40°C to +125°C operational limits for reliable performance.

Part Context

This part belongs to the KEMET ESD-R series of cylindrical ferrite cores. These components are widely utilized in passive electronic design for creating custom inductors and transformers where standard off-the-shelf magnetics do not fit spatial constraints.

Replacement Considerations

Consult official KEMET documentation for direct cross-references. Verify that any substitute maintains identical outer diameter, height, and MnZn material composition to ensure consistent magnetic performance.