SDE0805A-391K is a surface-mount power inductor from Bourns' SDE0805A series, engineered for automotive and industrial power conversion applications. The device features a 390 µH inductance with ±10% tolerance, ferrite core construction, and enameled copper windings with tin-plated terminals. It delivers a rated RMS current of 0.6 A, saturation current of 0.45 A, and a typical DC resistance of 1.29 O (maximum 1.5 O), with a self-resonant frequency of 4.4 MHz. The compact 7.8 × 7.0 × 5.0 mm package is AEC-Q200 qualified and RoHS compliant with halogen-free construction, making it suitable for automotive power supplies, DC-DC converters, and filtering applications where reliability and compliance are essential.