The Fair-Rite 9578283402 is a high-quality Ferrite Toroid Core, designed for optimal performance in a range of electronic circuits. Manufactured with Material 78, this core provides excellent magnetic properties. Its dimensions include an outer diameter (OD) of 28.3mm, an inner diameter (ID) of 17.7mm, and a height (H) of 11.1mm. Toroid cores are known for their ability to confine magnetic flux within the core, minimizing electromagnetic interference (EMI) and maximizing inductance. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine components. This core is suitable for applications such as inductors, transformers, and chokes, where efficient magnetic coupling and low losses are critical. Choose Fair-Rite for reliable and consistent performance.