The #A921CY-390M=P3 from Murata is a Power Inductor with Inductance 39 µH, Inductance Tolerance ±20%, DCR 180 milli-ohm, Saturation Current 580 mA, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for #A921CY-390M=P3 can be seen below.