The FAIR-RITE 5977001421 is a high-quality Toroid Core, manufactured using the company's signature 77 material. Supreme Components International is an authorised distributor of FAIR-RITE components, ensuring you receive genuine products with full traceability. This ferrite core is designed for a wide range of applications, including inductors, transformers, and noise filters. The toroid shape provides excellent magnetic flux containment, minimizing electromagnetic interference (EMI). The 77 material offers a good balance of permeability and saturation flux density. This core is suitable for use in power supplies, signal processing circuits, and other electronic devices where efficient energy storage and transfer are critical. Choose Supreme Components International for reliable components and expert support.