The SRS74R-390M-LF from Coilmaster Electronics is a Power Inductor with Inductance 39.0 µH, Inductance Tolerance ±20 %, DCR 180.0 milli-ohm, Saturation Current 0.91 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SRS74R-390M-LF can be seen below.