The Fair-Rite 5978001721 is a high-quality Ferrite Toroid Core designed for a wide range of electronic applications. Manufactured with Material 78, this core provides excellent magnetic properties. Its dimensions include an outer diameter (OD) of 17.2 mm, an inner diameter (ID) of 9.3 mm, and a height (H) of 6.35 mm. This toroid core is suitable for use in inductors, transformers, and other magnetic components. As an authorised distributor of Fair-Rite products, Supreme Components International ensures you receive genuine, reliable components. Trust Fair-Rite and Supreme Components International for your ferrite core needs.