The Fair-Rite 3061990831 is a high-quality Ferrite Toroid Core, designed for optimal performance in a range of electronic circuits. Manufactured by Fair-Rite, a leading name in ferrite technology, this core boasts exceptional magnetic properties thanks to its Material 61 composition. Its dimensions include an outer diameter of 9.91mm, an inner diameter of 5.59mm, and a height of 4.75mm. Supreme Components International is an authorised distributor of Fair-Rite products, ensuring you receive genuine components. This toroid core is commonly used in the construction of inductors, transformers, and chokes, providing excellent inductance and impedance characteristics. Its compact size and robust construction make it suitable for both prototyping and production environments. Trust Fair-Rite and Supreme Components International for your ferrite core needs.