The MPX1D0520L3R3 from Kemet Corporation is a Power Inductor with Inductance 3.30 µH, Inductance Tolerance ±20 %, DCR 55.80 to 64.20 milli-ohm, Saturation Current 3500 to 5500 mA, SRF 34 MHz. Tags: Surface Mount. More details for MPX1D0520L3R3 can be seen below.