The ECS-MPI4040R4-4R7-R from ECS International is a Power Inductor with Inductance 4.7 µH, Inductance Tolerance ±20 %, DCR 67 milli-ohm, Saturation Current 3900 mA, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for ECS-MPI4040R4-4R7-R can be seen below.