Manganin 290 Polyimide Manganin® Insulated Wire is a wire from Goodfellow's range of wires. With a resistance temperature coefficient of just 2ppm/°C, this wire has very low resistivity drift with temperature. The polyimide insulation allows operation up to 290°C. Applications include precision resistors, thermocouples, and instrumentation wiring where stability and high temperature performance are critical. With diameters from 0.05mm to 1mm, this wire is ideal for miniaturized circuits or high density wiring harnesses.