2773005111

Overview

The Fair-Rite 2773005111 is a ferrite core assembly designed for electromagnetic interference suppression. It features a split-core construction made from material 31, which provides high permeability and loss characteristics suitable for broadband noise attenuation in the frequency range of several megahertz to hundreds of megahertz. The component consists of two halves that snap together around a cable or conductor. Key physical dimensions include an inner diameter of approximately 5.1 mm and an outer diameter of 10.2 mm, with a length of 12.7 mm. The assembly utilizes a nylon clip mechanism for secure retention on wires without requiring tools.

Feature Summary

• Split-core design allows installation on existing cables without disconnection
• Material 31 composition offers effective broadband noise absorption
• Snap-fit nylon clip ensures secure mechanical retention

Applications

• Suppression of common-mode noise on data cables
• EMI reduction on power supply lines
• Noise filtering on communication interface wires

Procurement Notes

Verify the specific material grade (Material 31) matches the target frequency range for your application. Confirm the inner diameter accommodates the cable bundle thickness. Ensure the clip mechanism is intact upon receipt. Check datasheets for impedance curves at relevant frequencies rather than relying solely on general specifications.

Selection Notes

Select this part when non-invasive installation is required. Material 31 is optimal for higher frequency noise compared to lower frequency materials. Consider the cable diameter carefully as the split design has fixed internal clearance. Evaluate the need for additional strain relief if the clip does not provide sufficient hold for heavy cables.

Part Context

This component belongs to Fair-Rite's line of snap-on ferrite cores. These are widely used in electronics manufacturing for compliance testing and field repairs. The numbering system indicates the specific geometry and material combination. Similar parts exist with different materials for varying frequency responses.

Replacement Considerations

Direct substitutes must match the Material 31 specification and physical dimensions. Generic ferrite beads may lack the snap-fit convenience. Verify that any replacement maintains the same clamping force and inner diameter tolerance to ensure proper contact and effectiveness.