The ECS-MPI2520R1-1R0-R from ECS International is a Power Inductor with Inductance 1 µH, Inductance Tolerance ±20 %, DCR 35 to 42 milli-ohm, Saturation Current 4000 mA, Temperature Operating Range -40 to 105 Degree C. Tags: Surface Mount. More details for ECS-MPI2520R1-1R0-R can be seen below.