The 5977001921 is a high-quality Toroid Core manufactured by Fair-Rite, a leading name in ferrite technology. This core is made from Fair-Rite's popular 77 material, known for its excellent performance characteristics in a wide range of frequencies. As an authorised distributor of Fair-Rite components, Supreme Components International ensures that you receive a genuine product with full traceability. This toroid core is perfect for applications such as inductors, transformers, and chokes. Its toroidal shape provides a closed magnetic path, minimizing flux leakage and maximizing inductance. The 77 material offers a good balance of permeability and core loss, making it suitable for both power and signal applications. Choose the 5977001921 for your next project and experience the quality and reliability that Fair-Rite and Supreme Components International provide.