The Fair-Rite 6678211621 is a high-quality Ferrite Toroid Core, meticulously crafted from Material 78. Its precise dimensions of 21.0 mm (Outer Diameter), 11.0 mm (Inner Diameter), and 6.2 mm (Height) make it suitable for a wide range of electronic applications, including inductors, transformers, and chokes. The Material 78 composition provides excellent magnetic properties, ensuring optimal performance in demanding circuits. This toroid core is designed to minimize core losses and maximize efficiency. As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. Trust Supreme Components International for reliable electronic components and exceptional service. This Ferrite Toroid Core is a reliable choice for your electronic design needs.