The Fair-Rite 7895400321 is a high-quality Ferrite Toroid Core, available through Supreme Components International, an authorised distributor of Fair-Rite components. This core is constructed from Material 43, known for its excellent performance in a wide range of frequencies. Its dimensions include an outer diameter (OD) of 9.53mm, an inner diameter (ID) of 4.75mm, and a height (H) of 3.18mm. Toroid cores are commonly used in inductors, transformers, and filters due to their ability to provide a closed magnetic path, minimizing flux leakage and maximizing inductance. The 7895400321 is suitable for applications where space is limited and high efficiency is required. Trust Supreme Components International for reliable and authentic electronic components.