The LPS4040-684MR_ from Coilcraft is a Power Inductor with Inductance 680 µH, DCR 3000 milli-ohm, Saturation Current 130 to 150 mA, SRF 2.60 MHz, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for LPS4040-684MR_ can be seen below.