The Fair-Rite 7895400221 is a Toroid Core designed for superior performance in inductor and transformer applications. Supreme Components International, an authorised distributor of Fair-Rite components, provides this core made from Material 40, known for its excellent magnetic properties. This core offers an inductance factor (A_L) of 14.5 nH/N². Its compact dimensions, with an outer diameter of 9.53mm, an inner diameter of 4.75mm, and a height of 3.18mm, make it suitable for space-constrained designs. Ferrite toroid cores are commonly used to create inductors and transformers because of their high permeability, which enhances inductance and reduces electromagnetic interference. Choose Fair-Rite for reliable and efficient performance in your electronic circuits. Trust Supreme Components International for genuine components and expert support.