The Fair-Rite 6278110121 is a high-quality ferrite core designed for a wide range of electronic applications. As a solid round rod made from Material 78, this core provides excellent magnetic properties and is suitable for inductors, transformers, and other inductive components. Its dimensions are 12.7mm in diameter and 25.4mm in length. Material 78 offers a good balance of permeability and saturation flux density. Supreme Components International is an authorized distributor of Fair-Rite, guaranteeing the authenticity and quality of this product. Choose this ferrite core for reliable performance in your electronic designs. Benefit from consistent characteristics and optimal performance in your circuits. This core is ideal for applications where space is limited but high performance is required.