The Fair-Rite 2643021801 is a high-quality Ferrite Toroid Core, crafted from Material 43. This core is designed for a wide range of applications, including inductors, transformers, and noise filters. Its toroidal shape provides excellent magnetic properties and minimizes electromagnetic interference (EMI). With dimensions of 6.35mm OD x 3.18mm ID x 3.18mm H, this core offers a balance of size and performance. Supreme Components International is an authorised distributor of Fair-Rite components, ensuring that you receive a genuine product with full traceability. Material 43 offers a good balance of permeability and core loss, making it a versatile choice for various circuit designs. Trust Supreme Components International for your electronic component needs.