The FAIR-RITE 4277453509 is a high-quality Toroid Core designed for a wide range of electronic applications. Constructed from #77 material, this ferrite core offers excellent performance characteristics. Its dimensions include a 45.72mm outer diameter, a 27.94mm inner diameter, and a 12.7mm height. Toroid cores are commonly used in inductors, transformers, and chokes due to their efficient magnetic properties and self-shielding capabilities. This particular core is suitable for applications requiring stable inductance and minimal electromagnetic interference. As an authorized distributor of FAIR-RITE components, Supreme Components International ensures that you receive genuine, reliable products. Trust Supreme Components International for all your electronic component needs.