5961001801

Overview

Fair-Rite 5961001801 is a ferrite toroid core utilizing Material 61, characterized by low-to-medium permeability for stable inductance. It features an inner diameter of 13.7 mm, outer diameter of 22.1 mm, and height of 6.35 mm. The component exhibits an inductance of 75 nH at a test frequency of 10 kHz. Designed for closed magnetic circuit applications, it supports pulse transformers, ground fault interrupters, broadband transformers, power input filters, and common mode chokes.

Feature Summary

• Utilizes Material 61 composition for low-to-medium permeability performance
• Engineered for closed magnetic circuit configurations
• Provides stable inductance characteristics suitable for precision filtering

Applications

• Pulse transformers
• Ground fault interrupters
• Broadband transformers
• Power input filters
• Common mode chokes

Procurement Notes

Verify the specific Material 61 designation and physical dimensions against official Fair-Rite datasheets to ensure compatibility with existing designs. Confirm RoHS compliance status and packaging quantities directly with authorized distributors or the manufacturer prior to ordering.

Selection Notes

Select this component when low-to-medium permeability is required for stable inductance in closed magnetic circuits. Consider the 13.7 mm inner diameter for wire gauge constraints and the 75 nH inductance value for specific filter requirements. Ensure the operating frequency aligns with the material's effective range.

Part Context

This part belongs to the Fair-Rite 59 series of ferrite toroids. It is distinct from split-core or snap-on variants, offering a solid ring configuration for permanent installation in transformer and choke windings. The Material 61 formulation differentiates it from high-permeability alternatives like Material 43 or 31.

FAQ

What is the primary characteristic of Material 61 used in this core?

Material 61 provides low-to-medium permeability, ensuring stable inductance over varying conditions.

Is this core designed for open or closed magnetic circuits?

The 5961001801 is designed specifically for closed magnetic circuit applications.