The Fair-Rite 6578130121 is a high-quality Ferrite Toroid Core designed for optimal performance in a range of electronic circuits. Constructed from Material 78, this core provides excellent magnetic properties. Its toroidal shape ensures efficient flux containment, minimizing electromagnetic interference (EMI). With outer diameter of 13.21mm, inner diameter of 7.37mm and height of 4.75mm, this core is suitable for applications such as inductors, transformers, and filters. As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. Trust Supreme Components International for your electronic component needs.