The 121AT2503VSM from Gowanda Electronics is a Power Inductor with Inductance 250 µH, DCR 160 milli-ohm, Saturation Current 2200 to 3200 mA, SRF 1 MHz, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for 121AT2503VSM can be seen below.