The Fair-Rite 3078990861 is a high-quality Ferrite Toroid Core designed for a wide range of electronic applications. Constructed from Material 78, this core provides excellent magnetic properties and performance. Its dimensions include an outer diameter (OD) of 9.91mm, an inner diameter (ID) of 5.08mm, and a height (H) of 4.75mm. This toroid core is suitable for use in inductors, transformers, and other magnetic components. As an authorised distributor of Fair-Rite products, Supreme Components International guarantees the authenticity and quality of this Ferrite Toroid Core. Choose this core for reliable and efficient performance in your electronic designs. Benefit from our extensive inventory and fast shipping options.