The Fair-Rite 431178181 is a high-quality Ferrite Toroid Core, meticulously crafted from Material 78. This core boasts precise dimensions, with an outer diameter (OD) of 31.75mm, an inner diameter (ID) of 19.05mm, and a height (H) of 12.7mm. Toroid cores are widely used in electronic circuits for their excellent magnetic properties, making them suitable for applications such as inductors, transformers, and chokes. The Material 78 composition provides specific performance characteristics, optimized for certain frequency ranges and power levels. As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. Choose the 431178181 for reliable performance in your electronic designs.