5977001701

Overview

Fair-Rite Products Corp. part number 5977001701 is a solid ferrite core toroid belonging to the 77 material series. It features an inner diameter of 19.05 mm (0.750 inches), an outer diameter of 31.75 mm (1.250 inches), and a length of 9.50 mm (0.374 inches). The component utilizes Material 77, which is optimized for high-frequency applications. It is supplied in bulk packaging and is currently active.

Feature Summary

• Solid closed magnetic circuit design suitable for winding custom inductors or transformers
• Material 77 composition provides high permeability and low loss characteristics at high frequencies

Applications

• High-frequency transformer construction
• Custom inductor winding
• EMI suppression components requiring specific magnetic properties

Procurement Notes

Verify the exact physical dimensions against your winding requirements before ordering. Confirm that Material 77 aligns with your target frequency range and impedance specifications. Check current availability status as lead times may vary. Ensure compliance with relevant environmental regulations such as RoHS if required by your project standards.

Selection Notes

Select this component when a solid toroidal geometry is preferred over split-core designs for permanent installations. Material 77 is distinct from other Fair-Rite materials like 43 or 61, offering different permeability and loss profiles. Consider the internal diameter constraint when determining the maximum cable or wire bundle size that can pass through the center aperture during assembly.

Part Context

This part belongs to Fair-Rite's catalog of toroidal ferrite cores. Unlike snap-on or clamp-on cores, this solid toroid requires wires to be threaded through the center hole during manufacturing. It serves as a fundamental passive component for energy storage and signal filtering in electronic circuits where compact magnetic solutions are necessary.