The SDC4D18-180N-LF from Coilmaster Electronics is a Power Inductor with Inductance 18 µH, Inductance Tolerance ±30 %, DCR 338 milli-ohm, Saturation Current 0.48 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SDC4D18-180N-LF can be seen below.