The FAIR-RITE 3061990901 is a high-quality Ferrite Toroid Core, available through Supreme Components International, an authorised distributor. This core is constructed from Material 61, known for its excellent performance characteristics in a wide range of frequencies. Its dimensions include an outer diameter (OD) of 19.1mm, an inner diameter (ID) of 9.5mm, and a height (H) of 6.35mm. Toroid cores are commonly used in inductors, transformers, and chokes due to their ability to provide a closed magnetic path, minimizing electromagnetic interference (EMI) and maximizing inductance. This FAIR-RITE core is suitable for applications requiring high permeability and low core loss. Trust Supreme Components International for your FAIR-RITE component needs.