5978003801

Overview

Fair-Rite 5978003801 is a ferrite toroid core from the 59 series, manufactured using material 78. It features an inner diameter of 35.55 mm, an outer diameter of 61 mm, and an external height of 12.7 mm. The component exhibits an inductance of 3.155 uH when tested at a frequency of 10 kHz. This ring core type is supplied in bulk packaging.

Feature Summary

• Utilizes material 78 composition for specific magnetic properties
• Constructed as a solid ring core geometry
• Designed for use in transformer and inductor applications

Applications

• Transformer core construction
• Inductor winding substrate
• EMI suppression components

Procurement Notes

Verify the specific material grade 78 against application requirements to ensure correct permeability characteristics. Confirm physical dimensions match the design envelope, specifically the 35.55 mm inner diameter and 61 mm outer diameter. Check RoHS compliance status if required by the final assembly specifications.

Selection Notes

Select this component when a high-permeability ferrite toroid with material 78 is required. The 59 series designation indicates standard dimensions compatible with common winding forms. Ensure the operating frequency aligns with the performance profile of material 78, which differs from other Fair-Rite compositions like 43 or 61.

Part Context

This part belongs to the Fair-Rite 59 series of ferrite toroids. Material 78 is characterized by high initial permeability, making it suitable for low-frequency transformer and inductor applications where high flux density is needed. The 59 series provides standardized dimensions for consistent manufacturing processes.

FAQ

What is the inductance factor (Al value) for this core?

The datasheet specifies an inductance of 3.155 uH at 10 kHz. The Al value can be derived from this measurement based on the number of turns used during testing.

Is this core gapped?

No, the 5978003801 is a solid toroid without a specified air gap.