The Fair-Rite 446173551 is a Ferrite Toroid Core, a crucial component in numerous electronic circuits. Supreme Components International is an authorised distributor of Fair-Rite, ensuring you receive genuine, high-quality parts. This toroid core is made from Material 61, known for its excellent performance in a wide frequency range. Its dimensions include an outer diameter (OD) of 7.37mm, an inner diameter (ID) of 3.56mm, and a height (Ht) of 3.18mm. These cores are commonly used in applications such as creating inductors, transformers, and noise filters. Their toroidal shape provides excellent magnetic flux containment, minimizing electromagnetic interference. Choose Fair-Rite for reliable performance in your electronic designs. Supreme Components International guarantees authenticity and quality.