The FAIR-RITE 5977001221 is a high-quality Ferrite Toroid Core designed for optimal performance in a range of electronic circuits. Constructed from Material 77, this core provides excellent magnetic properties. Its dimensions are 9.53mm outer diameter, 4.75mm inner diameter, and 3.18mm height. Toroid cores are commonly used in inductors, transformers, and filters due to their ability to confine magnetic flux, reducing electromagnetic interference. As an authorised distributor of FAIR-RITE components, Supreme Components International guarantees the authenticity and quality of this product. This core is suitable for applications requiring efficient magnetic cores.