The FAIR-RITE 4077266011 is a Toroid Core designed for optimal performance in a wide range of electronic applications. Manufactured from #77 material, this uncoated ferrite core offers superior magnetic properties. Its toroidal shape provides excellent flux containment, reducing electromagnetic interference and improving efficiency. Supreme Components International, an authorised distributor of FAIR-RITE components, guarantees the authenticity and quality of this product. This core is ideal for use in inductors, transformers, power supplies, filters, and other critical circuit components. The #77 material offers a good balance of permeability and core loss, making it suitable for various frequency ranges. Choose the 4077266011 for reliable and consistent performance in your electronic designs. Benefit from the quality and reliability that FAIR-RITE and Supreme Components International provide.