ESD-R-57N-H

Overview

The KEMET ESD-R-57N-H is a solid, free-hanging ferrite core designed for cable electromagnetic interference suppression. It features a NiZn material composition and operates within a temperature range of -40°C to +120°C. The component has an inner diameter of 33.20mm (1.307 inches), an outer diameter of 61.00mm (2.402 inches), and a length of 25.00mm (0.984 inches). It provides an impedance of 200 ohms at 100MHz, with a broader effective range of 19 to 1000 ohms across frequencies up to 300MHz.

Feature Summary

• Solid bead form factor suitable for free-hanging installation on cables
• NiZn material construction optimized for high-frequency noise attenuation
• High thermal stability supporting operation up to 120°C

Applications

• Electromagnetic interference suppression on round power cables
• Common mode noise filtering in industrial equipment wiring
• Signal integrity enhancement in data transmission lines

Procurement Notes

Verify the specific impedance tolerance and frequency response curve against the official KEMET datasheet before finalizing procurement. Confirm that the physical dimensions align with the cable bundle diameter to ensure proper fit. Check for RoHS compliance documentation if required by your manufacturing standards. Ensure the ordering suffix matches the exact material grade specified for your application requirements.

Selection Notes

Select this component when a solid, non-split ferrite core is required for permanent cable installations. The NiZn material offers superior performance at higher frequencies compared to MnZn alternatives. Consider the 33.20mm inner diameter to accommodate multiple conductors or thick cables. Evaluate the 200-ohm impedance rating against the target noise spectrum to ensure effective attenuation without affecting signal integrity.

Part Context

This part belongs to the KEMET ESD-R series of cable ferrites, which are widely used for EMI/RFI suppression. The ESD-R-H variant specifically denotes high-temperature capability and NiZn material properties. These cores are standard components in electronic assemblies requiring robust passive filtering solutions for conducted emissions control.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing designs by matching inner diameter, outer diameter, and impedance characteristics precisely.