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Eureka Enameled Wire 0.516mm Diameter 180℃ High Temperature Resistant for Motors
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xProduct Details
| Material | Eureka (CuNi40) | Bare Wire Diameter | 0.516mm (±0.003mm) |
|---|---|---|---|
| Overall Diameter (w/insulation) | ~0.58-0.60mm (depending On Coating Thickness) | Insulation Class | 180°C (Polyesterimide/PAI) |
| Resistivity (20°C) | 0.49 μΩ·m | Tensile Strength | ≥550 MPa (Hard Drawn); ≥350 MPa (Annealed) |
| Elongation | ≥15% (250mm Gauge Length) | Operating Temperature Range | -60°C To +180°C |
| Highlight | Eureka enameled wire 0.516mm diameter,High temperature resistant motor wire,180℃ resistant enameled wire |
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Product Description
Eureka Enameled Wire (0.516mm, 180°C Class)
High-performance resistance wire composed of 60% copper and 40% nickel (CuNi40), engineered through vacuum smelting, precision drawing, and high-temperature enamel coating. This wire combines extremely stable electrical resistivity, low temperature coefficient of resistance (TCR), and excellent thermal stability up to 180°C.
Standard Designations & Core Material
- Alloy Grade: Eureka (CuNi40; equivalent to UNS C18400, DIN 2.0872)
- Key Specification: 0.516mm bare diameter (tolerance: ±0.003mm)
- Insulation Class: 180°C (Polyesterimide or Polyamide-imide enamel coating)
- Chemical Composition: Cu: 59-61%; Ni: 39-41%; trace impurities ≤0.5%
- Compliant Standards: IEC 60317, NEMA MW 1000, GB/T 6109
- Manufacturer: Huona New Material, certified to ISO 9001 and IATF 16949
Key Performance Advantages
Ultra-Stable Electrical Performance
- High & Stable Resistivity: 0.49 μΩ*m (20°C), significantly higher than pure copper for compact resistor designs
- Ultra-Low TCR: ±40 ppm/°C (0-100°C), ensuring minimal resistance drift (≤0.004%/°C) under temperature fluctuations
Superior 180°C Thermal Endurance
- Continuous High-Temperature Operation: Rated for continuous use at 180°C with short-term overload to 200°C
- Thermal Shock Resistance: Maintains adhesion and dielectric strength after 10,000 hours of aging at 180°C
Optimized 0.516mm Mechanical Properties
- Balanced Strength & Flexibility: Tensile strength ≥550 MPa with sufficient ductility for small mandrel winding
- Excellent Solderability: Easy enamel stripping or direct soldering for high-speed automated assembly
Technical Specifications
| Attribute | Value (Typical) |
|---|---|
| Alloy Material | Eureka (CuNi40) |
| Bare Wire Diameter | 0.516mm (±0.003mm) |
| Overall Diameter (w/insulation) | ~0.58-0.60mm |
| Insulation Class | 180°C (Polyesterimide/PAI) |
| Resistivity (20°C) | 0.49 μΩ*m |
| Temperature Coefficient of Resistance (0-100°C) | ±40 ppm/°C |
| Tensile Strength | ≥550 MPa (Hard Drawn); ≥350 MPa (Annealed) |
| Elongation | ≥15% (250mm gauge length) |
| Breakdown Voltage | ≥1500V (1min test) |
| Operating Temperature Range | -60°C to +180°C |
Product Specifications
| Item | Specification |
|---|---|
| Supply Form | Spools (1kg/5kg/10kg per spool; spool diameter 200mm/300mm) |
| Insulation Color | Natural (clear), red, or green (customizable) |
| Packaging | Cardboard spools + vacuum-sealed bags + outer carton |
| Customization | Diameter adjustment (0.02-3.0mm); insulation thickness variation |
Typical Applications
- Precision Resistors: High-precision wirewound resistors and potentiometers requiring stability
- Current Shunts: High-current measurement shunts in battery management systems and power inverters
- Automotive Electronics: Heating elements for seat warmers, defrosters, and engine sensors
- Aerospace & Defense: Critical resistance components in avionics and radar systems
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