The CDB1040M4R7T from Cal-Chip Electronics is a Power Inductor with Inductance 4.7 µH, Inductance Tolerance ±20 %, DCR 16.50 milli-ohm, Saturation Current 17 A, Temperature Operating Range -20 to 125 Degree C. Tags: Surface Mount. More details for CDB1040M4R7T can be seen below.