The Fair-Rite 431178181 is a high-quality Ferrite Toroid Core designed for optimal performance in a wide range of electronic circuits. Constructed from Material 78, this core offers excellent magnetic properties, including high permeability and low core loss, making it suitable for applications such as inductors, transformers, and noise filters. Its toroidal shape ensures efficient magnetic flux containment, minimizing electromagnetic interference (EMI). The core's dimensions are as follows: outer diameter (OD) of 31.75mm, inner diameter (ID) of 19.05mm, and a height (H) of 12.7mm. Supreme Components International is an authorized distributor of Fair-Rite products, guaranteeing genuine components and reliable performance. Choose the 431178181 for your next project and experience the Fair-Rite quality.