The SP1210R-561K from API Delevan is a Power Inductor with Inductance 0.56 µH, Inductance Tolerance ±10 %, DCR 109 milli-ohm, Saturation Current 1720 mA, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for SP1210R-561K can be seen below.