The Fair-Rite 5943000521 is a high-quality Ferrite Toroid Core, meticulously engineered for superior performance in a wide range of electronic circuits. Manufactured by Fair-Rite, a trusted name in magnetic components, this core boasts exceptional material properties and precise dimensions. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine components. This toroid core is constructed from Material 43, known for its excellent permeability and low core loss. Its dimensions are 9.4mm outer diameter (OD), 4.75mm inner diameter (ID), and 3.18mm height (H), making it suitable for compact designs. Typical applications include common mode chokes, inductors, and transformers. Benefit from the reliability and performance of Fair-Rite products, available through Supreme Components International.