The Fair-Rite 431173551 is a high-quality Ferrite Toroid Core, designed for optimal performance in a range of electronic circuits. Supreme Components International is an authorised distributor of Fair-Rite components, ensuring you receive genuine products. This core is made from Material 73, known for its excellent characteristics in suppressing electromagnetic interference (EMI). Its dimensions include an outer diameter (OD) of 11.7mm, an inner diameter (ID) of 7.3mm, and a height (H) of 5.1mm. This toroid core is commonly used in applications such as power inductors, signal transformers, and common-mode chokes. Its compact size and efficient magnetic properties make it a versatile choice for various design requirements. Choose Fair-Rite for reliable performance.