5977001901

Overview

Fair-Rite 5977001901 is a ferrite toroid core utilizing Material 77, designed for closed magnetic circuit applications. It features a ring configuration with an inner diameter of 12.7 mm (0.500 inches), an outer diameter of 7.9 mm (0.311 inches), and a height of 13 mm (0.512 inches). The component weighs 4.7 grams and is supplied in bulk packaging.

Feature Summary

• Constructed from Material 77 for medium permeability frequency range performance
• Ring configuration suitable for closed magnetic circuit designs
• RoHS compliant manufacturing standard

Applications

• Closed magnetic circuit transformer cores
• EMI suppression components
• Inductor core fabrication

Procurement Notes

Verify the specific Material 77 designation against project requirements to ensure compatibility with intended operating frequencies. Confirm that the bulk packaging format aligns with assembly line handling capabilities. Cross-reference dimensional tolerances with schematic constraints prior to final procurement authorization.

Selection Notes

Select this component when a closed magnetic circuit topology is required for the design. Material 77 offers specific permeability characteristics distinct from other Fair-Rite grades. Ensure the physical dimensions accommodate the available winding space and core window area within the mechanical enclosure constraints.

Part Context

This part belongs to the Fair-Rite 59 series of ferrite toroids. The 59 series provides various material compositions optimized for different frequency ranges. Material 77 is specifically engineered for applications requiring stable permeability at higher frequencies compared to lower-grade materials.

Replacement Considerations

Substitute parts must match the Material 77 specification and identical physical dimensions (ID 12.7mm, OD 7.9mm, Height 13mm) to maintain circuit performance and mechanical fit.