2643000101

Overview

The Fair-Rite 2643000101 is a solid round ferrite cable core designed for EMI suppression. It utilizes Material 43, providing an impedance of 40 ohms at a test frequency of 100 MHz. The component operates within a frequency range of 25 MHz to 300 MHz and features a relative permeability (µi) of 800. Physical dimensions include an inner diameter of 1.3 mm, an outer diameter of 3.5 mm, and an external length of 3.25 mm. It supports operating temperatures from -55°C to 125°C.

Feature Summary

• Solid free-hanging design for direct cable clamping
• Material 43 composition optimized for high-frequency noise attenuation
• Fixed geometry suitable for standard wire gauges

Applications

• EMI suppression on signal cables
• Noise filtering in electronic assemblies
• Shield bead application for cable harnesses

Procurement Notes

Verify the specific material grade matches the required impedance profile for the target frequency band. Confirm physical dimensions align with available cable diameters to ensure proper fit. Check manufacturer documentation for temperature ratings relevant to the installation environment. Ensure ordering quantities match factory pack specifications if bulk procurement is intended.

Selection Notes

Select this component when a fixed-geometry ferrite bead is required for frequencies between 25 MHz and 300 MHz. Material 43 is appropriate for applications prioritizing impedance over broad-band absorption. Verify that the 1.3 mm inner diameter accommodates the target conductor size without excessive force or loose fit.

Part Context

This part belongs to the Fair-Rite 26 series of solid round cable cores. It is categorized under EMI suppression beads and ferrites. The product is distinct from split-core variants due to its solid construction, requiring manual installation onto existing cables rather than snapping around them.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.