The Fair-Rite 7895400421 is a Toroid Core designed for optimal performance in a range of electronic circuits. Supreme Components International, an authorised distributor of Fair-Rite components, provides this core made from Material 43. Its toroidal shape ensures efficient magnetic flux containment, minimizing electromagnetic interference (EMI). With dimensions of A = 12.7 mm, B = 7.3 mm, and H = 4.75 mm, this core is suitable for applications such as power inductors, signal transformers, and common-mode chokes. The Material 43 offers a balance of permeability and core loss, making it a versatile choice for various frequency ranges. Trust Supreme Components International for reliable and authentic Fair-Rite products.