The CSDB1004N5R2T from Cal-Chip Electronics is a Power Inductor with Inductance 5.2 µH, Inductance Tolerance ±30 %, DCR 22.0 Mega-ohm, Saturation Current 5.50 A, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for CSDB1004N5R2T can be seen below.