5961003801

Overview

The Fair-Rite 5961003801 is a toroidal ferrite core manufactured from Mix 61 nickel-zinc material. It features an inner diameter of 12.7 mm, an outer diameter of 25.4 mm, and a height of 12.7 mm. The component exhibits an inductance factor (AL) of 75 nH per turn squared when measured at a test frequency of 10 kHz. This uncoated ring core is designed for high-frequency applications requiring stable magnetic properties.

Feature Summary

• Constructed from Mix 61 nickel-zinc ferrite material for consistent high-frequency performance
• Uncoated toroidal geometry facilitates easy winding and integration into custom circuits
• Optimized magnetic characteristics suitable for broadband transformer and choke applications

Applications

• Broadband transformers
• Common mode chokes
• Pulse transformers

Procurement Notes

Verify the specific Mix 61 material designation and physical dimensions against the official Fair-Rite datasheet to ensure compatibility with your design requirements. Confirm that the uncoated surface finish meets your environmental and handling standards. Cross-reference the manufacturer part number 5961003801 with authorized distributors to guarantee authenticity and traceability of the components.

Selection Notes

Select this component when designing circuits that require the specific permeability and loss characteristics of Mix 61 material at higher frequencies. Consider the 12.7 mm inner diameter to determine the maximum cable or wire gauge that can pass through the core. Evaluate the thermal environment, as ferrite properties can vary with temperature, and ensure the core size provides sufficient saturation margin for the intended current levels.

Part Context

This part belongs to the Fair-Rite 59 series of toroidal ferrite cores. The 5961003801 designation specifically identifies the FT240-61 variant, which utilizes Mix 61 material. This series is widely recognized in RF and power electronics for providing reliable magnetic coupling and noise suppression in compact form factors.

Replacement Considerations

Direct substitutes include other manufacturers' toroids with identical Mix 61 composition and matching FT240 dimensions. Ensure any replacement maintains the same AL value tolerance and frequency response characteristics to preserve circuit performance without redesign.