2646540002

Overview

Fair-Rite part number 2646540002 is a solid round cable ferrite core designed for electromagnetic interference suppression. It utilizes Material 46, which provides high impedance characteristics in the VHF and UHF frequency ranges. The component features an inside diameter of 6.35 mm (0.250 inches) and an outside diameter of 14.28 mm (0.562 inches). The core length measures 28.58 mm (1.125 inches). It exhibits an impedance of 225 Ohms at 100 MHz.

Feature Summary

• Solid cylindrical construction for secure mounting on cables
• Material 46 composition optimized for VHF/UHF noise attenuation
• Free-hanging design suitable for direct cable installation

Applications

• Suppression of common mode noise on coaxial cables
• EMI filtering for RF signal lines
• Noise reduction on power supply cords in electronic equipment

Procurement Notes

Verify the specific material grade required for your frequency range, as Material 46 targets higher frequencies compared to standard Mix 43 cores. Confirm that the cable diameter falls within the 6.35 mm inner diameter tolerance to ensure proper fit. Check RoHS compliance status if operating in regulated regions. Ensure the impedance specification meets the system requirements at the target noise frequency.

Selection Notes

Select this component when targeting interference in the VHF and UHF bands where Material 46 offers superior performance over lower-frequency mixes. The solid form factor is preferred over split cores for permanent installations where disassembly is not required. Compare impedance values at specific frequencies against other Fair-Rite materials to ensure optimal noise absorption for the application spectrum.

Part Context

This part belongs to the Fair-Rite 26 series of round cable cores. The numbering convention indicates the product class followed by the material grade. Material 46 is distinct from the more common Material 43, offering different permeability and loss characteristics tailored for higher frequency applications.

Replacement Considerations

For similar physical dimensions but different frequency performance, consider Fair-Rite 2643540002 which uses Material 43. Verify that substitute parts maintain the same impedance profile at the critical noise frequencies to ensure effective EMI suppression.