The IRH4D18M390 from TRIGON COMPONENTS is a Power Inductor with Inductance 39.00 µH, Inductance Tolerance ±20 %, DCR 709 milli-ohm, Saturation Current 0.30 A, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for IRH4D18M390 can be seen below.