The CCD0502M3R9T from Cal-Chip Electronics is a Power Inductor with Inductance 3.9 µH, Inductance Tolerance ±20 %, DCR 0.120 0hm, Saturation Current 2.400 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for CCD0502M3R9T can be seen below.