The Fair-Rite 5975000621 is a high-quality Toroid Core, manufactured using Fair-Rite's superior 75 material. This core is designed for optimal performance in a wide range of applications, including inductors, transformers, and chokes. Its toroidal shape provides excellent magnetic properties and minimizes electromagnetic interference. Supreme Components International is an authorised distributor of Fair-Rite products, ensuring you receive genuine components with full manufacturer support. Trust Supreme Components International for all your Fair-Rite component needs. We offer competitive pricing and fast shipping on all orders.