2873001802

Overview

Fair-Rite 2873001802 is a multi-aperture ferrite toroid core utilizing Material 73. It features an inner diameter of 1.1 mm, an outer diameter of 6.35 mm, and an external height of 6.15 mm. The component provides an impedance of 115 ohms at 10 MHz and 106 ohms at 50 MHz. Designed for bulk packaging, it serves as a passive electromagnetic interference suppression element.

Feature Summary

• Multi-aperture geometry allowing simultaneous passage of multiple conductors through individual holes
• Material 73 composition optimized for high-frequency noise attenuation in the VHF/UHF range
• Compact physical dimensions suitable for dense cable bundle applications

Applications

• Suppression of common-mode noise on multi-conductor cables
• EMI filtering in amateur radio equipment
• Signal integrity enhancement in high-speed digital interfaces

Procurement Notes

Verify the specific material designation (73) and aperture count against project requirements. Confirm dimensional tolerances for inner diameter (1.1 mm) to ensure proper wire fit. Check RoHS compliance status via official documentation before integration into regulated assemblies.

Selection Notes

Select this part when high-frequency attenuation above 10 MHz is required. Material 73 offers superior performance compared to standard Mix 43 in the VHF spectrum. Ensure the multi-aperture design aligns with the number of wires requiring simultaneous filtering within a single housing.

Part Context

This component belongs to Fair-Rite’s 28 series of multi-hole ferrite cores. These cores are distinct from single-hole toroids by accommodating multiple leads or wires simultaneously. They are widely used in telecommunications and consumer electronics for compact EMI control solutions.

Replacement Considerations

No officially confirmed substitute part numbers are available in public documentation. Alternative materials may require re-evaluation of impedance characteristics and frequency response curves.