The 1231AS-H-120M=P3 from Murata is a Power Inductor with Inductance 12 µH, Inductance Tolerance ±20%, DCR 186 milli-ohm, Saturation Current 850 mA, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for 1231AS-H-120M=P3 can be seen below.