The CSDS5D28N390T from Cal-Chip Electronics is a Power Inductor with Inductance 39 µH, Inductance Tolerance ±30 %, DCR 0.212 ohm, Saturation Current 0.70 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for CSDS5D28N390T can be seen below.