The Fair-Rite 6278370121 is a Ferrite Toroid Core designed for a wide range of electronic applications. Constructed from Material 78, this core offers excellent performance characteristics. Its dimensions include an outer diameter (OD) of 27.8mm, an inner diameter (ID) of 14.7mm, and a height (H) of 11.1mm. Toroid cores are known for their efficient magnetic flux containment, minimizing electromagnetic interference (EMI). This makes them 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 6278370121 for reliable performance in your electronic designs.