The Fair-Rite 5943000201 is a high-quality Ferrite Toroid Core, meticulously crafted from Material 43. Supreme Components International, an authorised distributor of Fair-Rite, ensures you receive a genuine product. This core boasts an outer diameter (OD) of 9.4mm, an inner diameter (ID) of 4.75mm, and a height (H) of 3.18mm. Toroid cores are widely used in electronics for their excellent magnetic properties, minimizing flux leakage and maximizing inductance. Applications include inductors, transformers, and filters. Material 43 offers a good balance of permeability and core loss, making it suitable for a wide range of frequencies. Trust Supreme Components International for all your Fair-Rite component needs.