ESD-R-25SR

Overview

The KEMET ESD-R-25SR is a solid manganese zinc (MnZn) ferrite core designed for electromagnetic interference suppression. It features a free-hanging installation style with an inner diameter of 16.00 mm, an outer diameter of 25.00 mm, and a length of 13.00 mm. The component utilizes S15H material composition, optimized for low-frequency applications such as the AM band at 150 kHz. It operates within a temperature range of -25°C to +85°C and complies with RoHS standards.

Feature Summary

• Solid construction eliminates the need for snap-on mechanisms, providing a stable mounting solution for round cables.
• S15H MnZn material formulation delivers high permeability specifically tuned for effective attenuation in low-frequency ranges.
• Free-hanging design allows for flexible integration into various cable assemblies without requiring additional hardware.

Applications

• Low-frequency electromagnetic interference suppression
• AM band signal filtering
• Round cable noise reduction

Procurement Notes

Verify the specific material grade S15H matches your frequency requirements. Confirm that the solid core geometry fits your assembly constraints compared to split-core alternatives. Ensure the operating temperature range aligns with your environmental conditions. Check for RoHS compliance documentation if required by your supply chain regulations.

Selection Notes

Select this part when a permanent, non-split ferrite solution is required for cables up to 16 mm in diameter. The S15H material is distinct from higher-frequency NiZn options, making it suitable for lower frequency noise profiles. Consider the physical dimensions carefully as the solid nature prevents post-installation cable routing adjustments.

Part Context

This component belongs to the ESD-R series of solid ferrite toroids manufactured by KEMET. Unlike the ESD-SR snap-on series which allows for retrofitting, the ESD-R series is intended for manufacturing integration where the cable can be threaded through before final assembly. It serves as a passive EMI mitigation element.

Replacement Considerations

Direct substitutes must match the 16.00 mm inner diameter and 25.00 mm outer diameter. Verify that any replacement uses MnZn S15H material to maintain equivalent low-frequency performance characteristics. Solid core geometry is mandatory if snap-on cores are not viable for the application.

FAQ

Is the ESD-R-25SR a split-core or solid core?

It is a solid ferrite core, meaning the cable must pass through the center hole during assembly and cannot be snapped onto an existing cable.

What material is used in the ESD-R-25SR?

The core is made of Manganese Zinc (MnZn) ferrite with the S15H material specification.