The Fair-Rite 9478115002 is a high-performance Toroid Core, manufactured using Fair-Rite's 78 material. This core is specifically designed for applications requiring efficient and reliable magnetic properties. With dimensions of A = 12.7 mm, B = 7.4 mm, and H = 4.8 mm, it's suitable for a wide range of inductor and transformer designs. The toroid shape provides excellent flux containment, minimizing electromagnetic interference. As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. This core is ideal for use in power supplies, filters, and other electronic circuits where a high-quality ferrite core is essential for optimal performance. Choose Fair-Rite for superior magnetic solutions.