The 121KM2502SM from Gowanda Electronics is a Power Inductor with Inductance 25 µH, DCR 17 milli-ohm, Saturation Current 3300 to 5700 mA, SRF 8 MHz, Temperature Operating Range -55 to 130 Degree C. Tags: Surface Mount. More details for 121KM2502SM can be seen below.