The SDC4D18-220N-LF from Coilmaster Electronics is a Power Inductor with Inductance 22 µH, Inductance Tolerance ±30 %, DCR 397 milli-ohm, Saturation Current 0.41 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SDC4D18-220N-LF can be seen below.