The Fair-Rite 4077374711 is a high-quality Toroid Core, meticulously manufactured using Fair-Rite's signature 77 material. This ferrite core is designed for optimal performance in a wide range of electronic applications, including inductors, transformers, and chokes. Its toroidal shape ensures efficient magnetic flux containment, minimizing electromagnetic interference (EMI). Supreme Components International is an authorised distributor of Fair-Rite products, ensuring you receive a genuine and reliable component. The 77 material offers a good balance of permeability and saturation flux density. This Toroid Core is perfect for applications requiring high inductance and low core loss. Trust Supreme Components International for all your electronic component needs.