The 121KM1003SM from Gowanda Electronics is a Power Inductor with Inductance 100 µH, DCR 65 milli-ohm, Saturation Current 1600 to 2800 mA, SRF 2 MHz, Temperature Operating Range -55 to 130 Degree C. Tags: Surface Mount. More details for 121KM1003SM can be seen below.