Abstract: A system for generating glass-coating microwires that can particularly apply a uniform cooling to a glass tube filled with molten metal inserted into a tank including a cooling liquid. The uniform cooling allows the formation of a glass-coated microwire with a non-distorted and uniform glass coating.

Abstract: An electromagnetic interference filter, including a core, having: at least one electrically conductive signal or power-insulated lead, at least one first layer surrounding the lead, made of glass-coated microwire, serving as a magnetic absorbent material, a tubular conductive material surrounding the first layer, and a substrate on which the core is mounted, the substrate is configured as a planar body having a top, a bottom and side surfaces, portions of the top and bottom surfaces are covered with electrically conductive material serving as signal and ground terminals and making electrical contact with the tubular conductive material of the core.