Polyimide-Insulated Manganin® Wire

Polyimide-Insulated Manganin® Wire merges the low temperature coefficient of resistance and long-term stability of manganin alloy with the high thermal endurance and chemical resistance of polyimide insulation. It is widely used in precision resistors, shunts, and metrology instrumentation requiring exceptional measurement stability over time and temperature variations. Industries such as aerospace, scientific instrumentation, and power electronics employ it in calibration devices, laboratory-grade resistance standards, and high-precision current sensing systems. Specific uses include shunt resistors in spacecraft power systems, bridge circuits for instrumentation, and thermal stability studies. In research, it is central to investigations on resistive drift, insulation stability at elevated temperatures, and alloy-coating adhesion under environmental stress. The insulated wire’s precision and resilience make it a cornerstone in advanced measurement applications.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Insulated Wire

Conductor Diameter		±10%
Insulation Thickness		Nominal
Length		+5% / -1%

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	50
Modulus of elasticity( GPa )	124-159
Izod impact strength( J m⁻¹ )	107
Tensile strength( MPa )	300-600

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	43-48
Temperature coefficient( K⁻¹ )	0.00001

Thermal Properties

Element	Value
Maximum use temperature in air( C )	300
Melting point( C )	960
Thermal conductivity( W m⁻¹ K⁻¹ )	22@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	14-19@20-100°C