The RDR664-5R5M-LF from Coilmaster Electronics is a Power Inductor with Inductance 5.5 µH, Inductance Tolerance ±20 %, DCR 39.5 milli-ohm, Saturation Current 2.30 A, Temperature Operating Range -45 to 125 Degree C. Tags: Through Hole. More details for RDR664-5R5M-LF can be seen below.