The Fair-Rite 7898400721 is a Toroid Core designed for optimal performance in a range of electronic applications. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine, high-quality components. This ferrite core, made from Material 78, offers excellent magnetic properties. Its dimensions include an outer diameter (OD) of 40.64mm, an inner diameter (ID) of 24.13mm, and a height (Ht) of 11.1mm. Toroid cores are known for their efficient magnetic flux containment, minimizing electromagnetic interference (EMI). This makes them suitable for inductors, transformers, and other applications where minimizing signal loss and maximizing efficiency are critical. Choose Fair-Rite for reliable performance and Supreme Components International for trusted distribution.