The FAIR-RITE 4277142009 is a high-quality toroid core designed for a wide range of electronic applications. Made from #77 material, this core offers excellent performance and reliability. Its key dimensions are: A = 14.7mm, B = 9.3mm, and H = 4.7mm. Toroid cores are known for their efficient magnetic flux containment, making them suitable for inductors, transformers, and other magnetic components. This particular core is ideal for applications requiring a compact and efficient design. As an authorized distributor of FAIR-RITE, Supreme Components International guarantees the authenticity and quality of this product. Choose the 4277142009 for your next project and experience the FAIR-RITE difference.