The CSDB1004N4R7T from Cal-Chip Electronics is a Power Inductor with Inductance 4.7 µH, Inductance Tolerance ±30 %, DCR 21.0 Mega-ohm, Saturation Current 5.70 A, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for CSDB1004N4R7T can be seen below.