2643004601

Overview

Fair-Rite 2643004601 is a solid round ferrite cable core designed for EMI suppression. It utilizes Material 43, providing an impedance of 31 ohms at 100 MHz and 302 pH inductance. The component features a 3.96 mm inner diameter, 7.92 mm outer diameter, and 12.7 mm length. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Solid free-hanging design for easy installation on cables
• Material 43 composition optimized for high-frequency noise attenuation
• Round cross-section geometry suitable for various wire gauges

Applications

• Electromagnetic interference suppression on signal cables
• Common mode noise reduction in data lines
• High-frequency circuit protection components

Procurement Notes

Verify the specific impedance value against your schematic requirements, as Material 43 characteristics vary with frequency. Confirm that the inner diameter accommodates the target cable insulation thickness without excessive force. Ensure the operating temperature range meets your environmental specifications. Check RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this part when a solid, non-split ferrite bead is preferred over split-core types for permanent installations. Material 43 is suitable for frequencies between 10 MHz and several hundred MHz. Compare the 31-ohm impedance at 100 MHz against other materials like 31 or 61 depending on the dominant noise spectrum. Ensure the physical dimensions fit within the available space constraints of the assembly.

Part Context

This component belongs to Fair-Rite's 26 series of solid ferrite cores. These are distinct from multi-aperture rings (28 series) or snap-on beads. The 26 series provides a robust, single-piece solution for shielding cables against radiated and conducted emissions in electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers: None identified.