The FAIR-RITE 443178181 is a high-quality Toroid Core designed for optimal performance in a range of electronic circuits. Constructed from #78 material, this ferrite core offers excellent magnetic properties, including high permeability and minimal core loss. Its compact dimensions, with a 4.45mm inner diameter, 7.87mm outer diameter, and 1.80mm height, make it suitable for space-constrained applications. This toroid core is commonly used in inductors, transformers, and filters. As an authorized distributor of FAIR-RITE components, Supreme Components International guarantees the authenticity and quality of this product. Trust Supreme Components International for all your electronic component needs.