ESD-R-291216H-NC23

Overview

The KEMET ESD-R-291216H-NC23 is a nanocrystalline ferrite toroid designed for electromagnetic interference suppression. It features an outer diameter of 29.00 mm, an inner diameter of 12.70 mm, and a length of 16.00 mm. The component operates at frequencies around 10 MHz and withstands temperatures up to 120°C.

Feature Summary

• Utilizes nanocrystalline material for high magnetic permeability and low core loss
• Cased design provides mechanical protection and standardized dimensions
• Optimized for broadband noise attenuation in power line applications

Applications

• Electromagnetic interference filtering on AC/DC power cords
• Suppression of common-mode noise in data communication cables
• Noise reduction in automotive electronic wiring harnesses

Procurement Notes

Verify the specific part number suffix against official KEMET documentation to ensure correct material composition and dimensional tolerances. Confirm that the requested item matches the nanocrystalline specification rather than standard ferrite alternatives. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance status or packaging configurations before finalizing procurement orders.

Selection Notes

Select this component when high attenuation performance is required across a broad frequency spectrum compared to traditional ferrites. Ensure the cable bundle diameter fits within the 12.70 mm inner diameter clearance. Evaluate the thermal environment to confirm operation remains within the 120°C maximum rating. Consider the physical size constraints of the enclosure relative to the 29 mm outer diameter profile.

Part Context

This toroid belongs to KEMET's ESD-R series of nanocrystalline cores. These components are engineered to replace conventional ferrite beads where higher impedance and better high-frequency performance are necessary. The series offers consistent electrical characteristics suitable for stringent electromagnetic compatibility requirements in industrial and consumer electronics.

Replacement Considerations

Direct substitutes must match the 29x12.7x16 mm dimensions and nanocrystalline material properties. Verify equivalent impedance curves at target frequencies. Generic ferrite rings may not provide sufficient attenuation. Consult manufacturer cross-reference lists for validated alternative part numbers with identical form, fit, and function.