5943002701

Overview

Fair-Rite 5943002701 is a ferrite toroid core utilizing Material 43, characterized by an initial permeability of 800. The component features an outer diameter of 35.55 mm, an inner diameter of 23 mm, and an external height of 12.7 mm. It exhibits an inductance of 885 nH when tested at a frequency of 10 kHz. This uncoated magnetic ring is designed for applications requiring low-to-medium frequency performance.

Feature Summary

• Utilizes Material 43 with high initial permeability for effective magnetic coupling
• Solid toroidal geometry supports efficient winding distribution
• Uncoated surface finish allows direct contact with conductive windings

Applications

• Power input filtering circuits
• Ground-fault interrupter designs
• Common-mode filter implementations

Procurement Notes

Verify the specific Material 43 designation and physical dimensions against official Fair-Rite datasheets to ensure compatibility with existing magnetic circuit requirements. Confirm RoHS compliance status and packaging quantities directly with authorized distributors prior to ordering.

Selection Notes

Select this component for applications requiring high permeability in the low-to-medium frequency range. Ensure the available window area accommodates the required wire gauge and turn count. Verify that the core saturation characteristics align with the intended current levels.

Part Context

This part belongs to the FT-140 series of ferrite toroids manufactured by Fair-Rite Products Corp. The FT-140 designation corresponds to the specific physical dimensions of the core. Material 43 is a standard formulation optimized for broadband transformer and choke applications within specific frequency bands.

Replacement Considerations

FT140-43 is a confirmed public substitute part number representing the same physical dimensions and material composition.