The Fair-Rite 2643180251 is a high-quality Toroid Core, available at Supreme Components International, an authorised distributor. This ferrite core is made from Material 43, known for its excellent performance in a wide range of frequencies. The core's dimensions are A = 14.5 mm, B = 7.5 mm, and H = 5.1 mm, making it suitable for compact designs. Toroid cores offer superior magnetic properties compared to other core shapes, minimizing electromagnetic interference (EMI). This component is commonly used in inductors, transformers, and chokes. Choose Fair-Rite for reliable and efficient performance in your electronic circuits. Supreme Components International guarantees the authenticity and quality of this Fair-Rite product.