The Fair-Rite 3061990821 is a high-quality Toroid Core, available at Supreme Components International, an authorised distributor of Fair-Rite electronic components. This ferrite core is designed for optimal performance in a variety of applications. Its key features include Material 61, an outer diameter (OD) of 9.91mm, an inner diameter (ID) of 5.59mm, and a height (Ht) of 4.75mm. Toroid cores offer excellent magnetic properties and are commonly used in inductors, transformers, and other electromagnetic devices. Choose Fair-Rite for reliable and consistent performance in your electronic designs. Supreme Components International ensures you receive genuine Fair-Rite products with full traceability.