2773005112

Overview

The Fair-Rite 2773005112 is a ferrite core assembly designed for electromagnetic interference suppression. It utilizes Material 43, which provides high permeability and effective attenuation in the frequency range of 1 to 100 MHz. The component features a split-core design with a snap-fit mechanism, allowing for installation over existing cables without disconnection. Key physical parameters include an inner diameter of approximately 5.1 mm and an outer diameter of 10.2 mm. The assembly includes two halves that clamp together securely around the conductor.

Feature Summary

• Snap-fit split-core construction enables rapid installation on pre-existing wiring harnesses
• Material 43 composition offers optimized magnetic properties for broadband noise reduction
• Secure clamping mechanism maintains position under typical vibration conditions

Applications

• Suppression of common-mode noise on data cables within electronic enclosures
• EMI mitigation on power supply lines in consumer electronics
• Noise filtering on communication interfaces such as USB or Ethernet ports

Procurement Notes

Verify the specific material grade (Material 43) matches the target frequency requirements for your application. Confirm the cable diameter falls within the specified inner diameter tolerance to ensure proper fit and magnetic coupling. Check for any RoHS compliance documentation if required by your manufacturing standards. Ensure the split-core halves are fully engaged to maintain structural integrity during operation.

Selection Notes

Select this component when retrofitting EMI suppression onto existing cables is necessary. Material 43 is suitable for applications requiring attenuation in the lower VHF spectrum. Consider the physical size constraints of the enclosure to accommodate the core's outer dimensions. Evaluate the current carrying capacity of the cable rather than the core, as the core does not carry current but affects impedance.

Part Context

This part belongs to Fair-Rite's line of snap-on ferrite cores. These components are distinct from solid toroidal cores due to their modular design. They are commonly used in commercial and industrial electronics where field installation or repair requires non-destructive attachment methods. The numbering system indicates the specific material formulation and physical dimensions.

Replacement Considerations

Direct substitutes must match the Material 43 specification and similar dimensional tolerances. Alternative brands may offer comparable performance if they provide identical permeability characteristics and physical fit. Verify that any replacement maintains the same snap-fit engagement force to prevent accidental separation.