The 121AT5002VSM from Gowanda Electronics is a Power Inductor with Inductance 50 µH, DCR 30 milli-ohm, Saturation Current 3900 to 6000 mA, SRF 4 MHz, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for 121AT5002VSM can be seen below.