2643801902

Overview

Fair-Rite 2643801902 is a solid cylindrical ferrite cable core utilizing Material 43. It provides an impedance of 73 ohms at 100 MHz, operating within a frequency range of 25 MHz to 300 MHz. The component features a 7.9 mm inner diameter, 12.7 mm outer diameter, and a length of 12.7 mm. Designed for electromagnetic interference suppression, it is available in bulk packaging.

Feature Summary

• Solid cylindrical construction for direct cable clamping
• Material 43 composition optimized for high-frequency noise attenuation
• Free-hanging design suitable for various cable diameters

Applications

• Electromagnetic interference suppression on cables
• High-frequency signal line filtering
• Cable assembly noise reduction

Procurement Notes

Verify the specific Material 43 designation and impedance value of 73 ohms at 100 MHz against official Fair-Rite datasheets. Confirm physical dimensions including the 7.9 mm inner diameter and 12.7 mm outer diameter to ensure compatibility with target cable sizes. Check for RoHS compliance status as documented by the manufacturer.

Selection Notes

Select this component when a solid, non-split ferrite bead is required for permanent installation on cables. Material 43 is appropriate for applications requiring effective suppression in the 25 MHz to 300 MHz range. Ensure the cable diameter fits within the 7.9 mm inner diameter constraint before finalizing the selection.

Part Context

This part belongs to the Fair-Rite 26 series of round cable cores. These components are distinct from split-core designs, offering a solid structure that must be threaded onto cables during assembly. The 2643801902 variant specifically utilizes Material 43, differentiating it from other materials like 31 or 61 used in similar form factors.

Replacement Considerations

Direct substitutes include other Fair-Rite Material 43 cylindrical cores with matching dimensions, such as 2643801901 or 2643801903, depending on exact length requirements. Cross-manufacturer replacements require verifying identical impedance curves and material permeability characteristics.