ESD-R-25

Overview

The KEMET ESD-R-25 is a solid manganese zinc (MnZn) ferrite core designed for electromagnetic interference suppression. It features a circular geometry with an inner diameter of 12.70 mm, an outer diameter of 25.00 mm, and a length of 16.00 mm. The component operates within a temperature range of -25°C to +85°C and is rated for frequencies up to 100 MHz.

Feature Summary

• Constructed from manganese zinc ferrite material for effective high-frequency noise attenuation
• Solid toroidal design allows for free-hanging installation around round cables
• Optimized for electromagnetic interference suppression in power and signal lines

Applications

• Suppression of common-mode noise on round power cables
• Electromagnetic interference filtering in electronic equipment
• Signal integrity enhancement in data transmission lines

Procurement Notes

Verify the specific suffix or variant against official KEMET documentation to ensure compatibility with required frequency ranges and physical dimensions. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region and production batch.

Selection Notes

Select this component based on the cable diameter fitting within the 12.70 mm inner bore. Ensure the operating environment stays within the specified -25°C to +85°C thermal limits. Consider the MnZn material properties for suitability at target frequencies up to 100 MHz compared to alternative NiZn cores.

Part Context

This part belongs to the KEMET ESD-R series of solid ferrite cores. These components are widely used for passive EMI suppression. The ESD-R-25 specifically denotes the 25 mm outer diameter variant within this standardized product line, offering a balance of size and impedance characteristics for general-purpose cable wrapping applications.

Replacement Considerations

Consult official KEMET substitution guides for direct equivalents. Generic replacements must match the MnZn material composition, dimensional constraints, and frequency response curves to maintain circuit performance.