The IRH4D18N1R0 from TRIGON COMPONENTS is a Power Inductor with Inductance 1.00 µH, Inductance Tolerance ±30 %, DCR 45 milli-ohm, Saturation Current 1.72 A, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for IRH4D18N1R0 can be seen below.