The PIA4018-4R7MQ from AiT Semiconductor is a Power Inductor with Inductance 4.70 µH, Inductance Tolerance ±20 %, DCR 96.0 milli-ohm, Saturation Current 1700 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for PIA4018-4R7MQ can be seen below.