The Fastron 1210F-3R9K-04 is a 3.9uH SMD inductor designed for optimal performance in a wide range of electronic circuits. Manufactured by Fastron, this inductor boasts a compact 1210 footprint, making it ideal for space-constrained applications. Supreme Components International is an authorised distributor of Fastron components, ensuring you receive a genuine and reliable product. This SMD inductor is perfect for use in power supplies, RF circuits, and other applications requiring precise inductance values. Its robust construction ensures long-term stability and consistent performance. Benefit from its low DC resistance and high self-resonant frequency. Trust Supreme Components International for all your electronic component needs.