5977011101

Overview

Fair-Rite part number 5977011101 is a ferrite toroidal core utilizing Material 77. It features an inner diameter of 12.7 mm and an outer diameter of 31.75 mm, with a height of 12.7 mm. The component has a nominal inductance factor (AL) of 3.5 µH per turn squared. It is designed for electromagnetic interference suppression applications and complies with RoHS standards.

Feature Summary

• Utilizes Fair-Rite Material 77 for high-frequency performance
• Toroidal geometry for efficient magnetic flux containment
• RoHS compliant construction

Applications

• Electromagnetic interference suppression
• Common mode choke cores
• Inductor winding substrates

Procurement Notes

Verify the specific Material 77 designation against current Fair-Rite datasheets to confirm frequency characteristics. Ensure the physical dimensions match the design requirements for the intended winding window. Confirm RoHS compliance status if required by the final assembly specifications.

Selection Notes

Select this core when high permeability at higher frequencies is required compared to standard mix materials. The toroidal shape minimizes external magnetic fields. Verify that the wire gauge fits within the 12.7 mm inner diameter opening.

Part Context

This component belongs to the Fair-Rite ferrite core product line, specifically the toroidal series. Material 77 is distinct from other mixes like 43 or 61, offering different permeability and loss characteristics suitable for specific RF and power filtering ranges.

Replacement Considerations

Substitute only with Fair-Rite parts explicitly designated as Material 77 toroids with identical or compatible dimensional tolerances. Generic ferrite rings may not provide the same permeability or loss profile.