The Fair-Rite 7898400121 is a high-quality Toroid Core designed for a wide range of electronic applications. Constructed from Material 78, this ferrite core offers excellent performance characteristics. Its dimensions include an outer diameter (OD) of 9.8mm, an inner diameter (ID) of 4.8mm, and a height (H) of 3.1mm. This toroid core is suitable for use in inductors, transformers, and other magnetic components. As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. Choose the 7898400121 for reliable performance in your electronic designs.