The FAIR-RITE 6278180121 is a high-quality toroid core designed for a wide range of electronic applications. Constructed from NI-ZN 78 material, this core offers superior performance and reliability. Its dimensions are A=18.0mm, B=9.5mm, and H=6.35mm. Toroid cores are commonly used in inductors, transformers, and filters due to their efficient magnetic properties and self-shielding characteristics. As an authorised distributor of FAIR-RITE components, Supreme Components International guarantees the authenticity and quality of this product. Choose the 6278180121 for your next project and experience the FAIR-RITE advantage.