The WSF10D40-7R0YQ from AiT Semiconductor is a Power Inductor with Inductance 7.00 µH, Inductance Tolerance ±30 %, DCR 27.0 mOhm, Saturation Current 4.80 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for WSF10D40-7R0YQ can be seen below.