Manganin Enameled Wire 0.1mm, 0.2mm, 0.5mm High-Precision Resistance Alloy Wire

Short Description:

Key attributes
Industry-specific attributes
Conductor Material
Copper Nickel Alloy
Insulation Material
PE
Number of Conductors

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Product Description

Manganin Enameled Wire (0.1mm, 0.2mm, 0.5mm) High-Precision Resistance Alloy Wire

Product Overview

Manganin enameled wire is a high-precision resistance alloy wire composed of a manganin core (Cu-Mn-Ni alloy) coated with a thin, heat-resistant enamel insulation layer. Available in diameters 0.1mm, 0.2mm, and 0.5mm, it is engineered for applications requiring stable electrical resistance over wide temperature ranges and minimal resistance drift. The enamel coating provides excellent electrical insulation and mechanical protection, making it suitable for precision resistors, current shunts, and instrumentation where accuracy is critical.

Standard Designations

Alloy Standard: Conforms to ASTM B193 (manganin alloy specifications)
Enamel Insulation: Meets IEC 60317-30 (polyimide enamel for high-temperature wires)
Dimensional Standards: Complies with GB/T 6108 (enameled wire size tolerances)

Key Features

Ultra-Stable Resistance: Temperature coefficient of resistance (TCR) ≤20 ppm/°C (-55°C to 125°C)
Low Resistivity Drift: <0.01% resistance change after 1000 hours at 100°C
High Insulation Performance: Enamel breakdown voltage ≥1500V (for 0.5mm diameter)
Precise Dimensional Control: Diameter tolerance ±0.002mm (0.1mm), ±0.003mm (0.2mm/0.5mm)
Heat Resistance: Enamel withstands continuous operation at 180°C (class H insulation)

Technical Specifications

Attribute	0.1mm Diameter	0.2mm Diameter	0.5mm Diameter
Nominal Diameter	0.1mm	0.2mm	0.5mm
Enamel Thickness	0.008-0.012mm	0.010-0.015mm	0.015-0.020mm
Overall Diameter	0.116-0.124mm	0.220-0.230mm	0.530-0.540mm
Resistance at 20°C	25.8-26.5 Ω/m	6.45-6.65 Ω/m	1.03-1.06 Ω/m
Tensile Strength	≥350 MPa	≥330 MPa	≥300 MPa
Elongation	≥20%	≥25%	≥30%
Insulation Resistance	≥10⁶ MΩ·km	≥10⁶ MΩ·km	≥10⁶ MΩ·km

Chemical Composition (Manganin Core, Typical %)

Element	Content (%)
Copper (Cu)	84-86
Manganese (Mn)	11-13
Nickel (Ni)	2-4
Iron (Fe)	≤0.3
Silicon (Si)	≤0.2
Total Impurities	≤0.5

Product Specifications

Item	Specification
Enamel Material	Polyimide (class H)
Color	Natural amber (custom colors available)
Length per Spool	500m (0.1mm), 300m (0.2mm), 100m (0.5mm)
Spool Dimensions	100mm diameter (0.1mm/0.2mm), 150mm diameter (0.5mm)
Packaging	Sealed in moisture-proof bags with desiccants
Custom Options	Special enamel types (polyester, polyurethane), cut-to-length

Typical Applications

Precision current shunts in power meters
Standard resistors for calibration equipment
Strain gauges and pressure sensors
High-accuracy Wheatstone bridges
Aerospace and military instrumentation

We provide full traceability for material composition and resistance performance. Free samples (1m lengths) and detailed test reports (including TCR curves) are available upon request. Bulk orders include automated winding support for resistor manufacturing lines.

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enameled wire