The Fair-Rite 6678404121 is a high-quality Toroid Core, available through Supreme Components International, an authorised distributor of Fair-Rite components. This ferrite core, belonging to the FERRITE CORE product category and TOROID CORE subcategory, is constructed from Material 78. Its toroidal shape provides excellent magnetic properties for applications such as inductors, transformers, and noise filters. The core's dimensions are A = 12.7 mm, B = 7.3 mm, and H = 4.75 mm. Choose this reliable component for optimal performance in your electronic designs. Trust Supreme Components International for genuine Fair-Rite products and expert support.