The Yageo MF0 Series 2.2k ohm metal film professional resistors are manufactured using a vacuum sputtering system to deposit multiple layers of mixed metal alloys and passivative materials onto a carefully treated high grade ceramic substrate. After a helical groove has been cut in the resistive layer, tinned connecting leads of electrolytic copper are welded to the end-caps. The resistors are coated with layers of blue colour lacquer.Temperature coefficient of resistance is 50ppm/°CMaximum working voltage is 350VOperating temperature range is 55°C to +155°C