The FAIR-RITE 9478205002 is a high-quality TOROID CORE, meticulously manufactured using #78 material. Supreme Components International, an authorised distributor of FAIR-RITE components, ensures you receive a genuine and reliable product. This ferrite core is designed for a wide range of electronic applications, offering excellent performance and durability. Its toroidal shape provides superior magnetic properties, making it suitable for inductors, transformers, and other critical components. The core's dimensions are A=11.94mm, B=6.35mm, and H=4.75mm. Choose Supreme Components International for all your electronic component requirements, knowing you're getting authentic parts from a trusted source.