The SDC4D18-680N-LF from Coilmaster Electronics is a Power Inductor with Inductance 68 µH, Inductance Tolerance ±20 %, DCR 1300 milli-ohm, Saturation Current 0.24 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for SDC4D18-680N-LF can be seen below.