The Fair-Rite 6578200121 is a high-quality Ferrite Toroid Core, meticulously crafted from Material 78. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine components. This toroid core boasts dimensions of 20.32mm outer diameter (OD), 12.7mm inner diameter (ID), and 6.35mm height (H). Its toroidal shape and specific material composition make it suitable for applications demanding high inductance, efficient energy storage, and minimal core losses. Typical applications include inductors, transformers, and filters in power supplies, signal processing circuits, and RF applications. Benefit from Fair-Rite's renowned quality and performance with this reliable ferrite core.