The FAIR-RITE 5977000201 is a high-quality Toroid Core, meticulously manufactured using #77 material. Supreme Components International is an authorised distributor of FAIR-RITE components, ensuring you receive a genuine and reliable product. This core is specifically designed for applications requiring efficient magnetic flux paths, such as inductors, transformers, and chokes. Its toroidal shape minimizes electromagnetic interference (EMI) and provides superior performance compared to other core geometries. The core's dimensions are A=12.7mm (outer diameter), B=7.4mm (inner diameter), and H=4.75mm (height). The #77 material offers a good balance of permeability and core loss, making it suitable for a wide range of frequencies. Choose the 5977000201 for your next project and experience the FAIR-RITE quality advantage. Supreme Components International is your trusted source for electronic components.