The SRR6040A-390M from Bourns is a Power Inductor with Inductance 39 µH, Inductance Tolerance ± 20 %, DCR 103 to 135 milli-ohm, Saturation Current 940 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SRR6040A-390M can be seen below.