The 3615 series SMD High-current Inductor with solder coated copper termination. This is a high-current, wound inductor, based on phenolic, iron or ferrite cores (depending on the value required). Values from 0.1 to 2.7µH have a phenolic core, 3.3 to 100µH an iron core and 120 to 1000µH a ferrite core.