The SDC4D18-120N-LF from Coilmaster Electronics is a Power Inductor with Inductance 12 µH, Inductance Tolerance ±30 %, DCR 210 milli-ohm, Saturation Current 0.56 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SDC4D18-120N-LF can be seen below.