The Fastron 1812AF-391K-04 wire wound inductor is a crucial component for electronic circuits requiring inductance. Manufactured by Fastron, this inductor is designed for optimal performance and reliability. Supreme Components International is an authorised distributor of Fastron products, ensuring you receive genuine components. The 1812AF-391K-04 features a wire wound construction, providing a stable inductance value. Its compact 1812 package allows for easy integration into various circuit boards. This inductor is suitable for applications such as power supplies, filters, and RF circuits. Trust Supreme Components International for all your Fastron component needs.