The Fair-Rite 9578444502 is a high-quality Ferrite Toroid Core, perfect for a wide range of applications including power inductors, transformers, and noise filters. Manufactured by Fair-Rite, a leading provider of ferrite components, this core offers excellent performance and reliability. Supreme Components International is an authorised distributor of Fair-Rite products, ensuring you receive genuine components. This toroid core is made from Material 78, known for its high permeability and low core loss. Its dimensions are OD: 44.45mm, ID: 22.86mm, and Ht: 12.7mm. Choose this core for optimal performance in your next project.