The Fair-Rite 6678353621 is a Ferrite Toroid Core designed for optimal performance in a range of electronic circuits. Constructed from Material 78, this core offers excellent magnetic properties. Its dimensions include an outer diameter (OD) of 35.3mm, an inner diameter (ID) of 22.2mm, and a height (Ht) of 14.3mm. Toroid cores are commonly used in inductors, transformers, and other electromagnetic devices due to their ability to confine magnetic flux, reducing electromagnetic interference (EMI). As an authorized distributor of Fair-Rite components, Supreme Components International guarantees the authenticity and quality of this product. Choose this core for reliable and efficient performance in your electronic designs. This core is RoHS compliant.