The Fair-Rite 2643172551 is a Ferrite Toroid Core designed for a wide range of electronic applications. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine, high-quality components. This core is made from Material 43, known for its excellent performance characteristics. Its dimensions include an outer diameter of 17.27mm, an inner diameter of 9.65mm, and a height of 6.35mm. Toroid cores are commonly used in inductors, transformers, and filters due to their ability to provide high inductance and minimize electromagnetic interference. The 2643172551 is suitable for applications requiring efficient energy storage and low core loss. Trust Supreme Components International for all your Fair-Rite component needs.