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Manganese wire Copper-manganese-nickel alloy (CuMnNi alloy) for use at room temperature

Short Description:

The alloy is used for the manufacture of resistance standards, precision wire wound resistors, potentiometers, shunts and other electrical
and electronic components. This Copper-Manganese-Nickel alloy has a very low thermal electromotive force (emf) vs. Copper, which
makes it ideal for use in electrical circuits, especially DC, where a spurious thermal emf could cause malfunctioning of electronic
equipment. The components in which this alloy is used normally operate at room temperature; therefore its low temperature coefficient
of resistance is controlled over a range of 15 to 35ºC.


  • Model NO.: Manganese
  • Transport Package: Wooden Case
  • shape: round wire
  • size: 0.05-2.5mm
  • Origih: Shanghai, China
  • Sample: accepted small order
  • Product Detail

    FAQ

    Product Tags

    The precision resistance alloy MANGANIN is especially characterized by low temperature coefficient between 20 and 50 °C with a parabolic shape of the R(T) curve, high long term stability of electrical resistance, extremely low thermal EMF versus copper and good working properties.
    However, higher thermal loads in a non-oxidizing atmosphere are possible. When used for precision resistors with the highest requirements, the resistors should be carefully stabilised and the application temperature should not exceed 60°C. Exceeding the maximum working temperature in air may result in a resistance drift generated by oxidizing processes.Thus, the long term stability can be affected negatively. As a result, the resistivity as well as the temperature coefficient of the electric resistance may slightly change. It is also used as low cost replacement material for silver solder for hard metal mounting.


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