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CuNi23 Alloy 180 Precision Resistance Wire 0.12mm Diameter with Low TCR ±50 ppm/°C and Corrosion Resistance

Luogo di origine Shanghai
Marca Huona
Certificazione ISO9001
Numero di modello Lega 180
Quantità di ordine minimo 10KG
Prezzo Negoziabile
Imballaggi particolari scatola di cartone/legno
Tempi di consegna 5-21 giorni
Termini di pagamento L/C,T/T,Western Union
Capacità di alimentazione 500 tonnellate al mese
Dettagli
Grado di lega Lega 180 Diametro 0,12 mm (±0,005 mm)
modulo Bobina di plastica (800 m/bobina) Resistenza (20°C) ~0,39 Ω·mm²/m
TCR ±50 ppm/°C Temperatura operativa massima 300 ° C.
Resistenza alla trazione MPa ≥400 Allungamento ≥25%
Evidenziare

CuNi23 precision resistance wire

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Alloy 180 resistance wire 0.12mm

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To header resistance wire

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Descrizione di prodotto

CuNi23 (Alloy 180) Precision Resistance Wire – 0.12mm Diameter


Product Overview


CuNi23 (Alloy 180 / Cuprothal 180) precision resistance wire from Huona is a copper-nickel-manganese alloy designed for stable, mid-resistance applications requiring low temperature coefficient and good corrosion resistance. It is the industry-standard grade for wire-wound resistors, rheostats, and heating elements where a balance of resistivity, TCR, and cost is needed.



Core Specifications


  • Product Name: CuNi23 (Alloy 180) Precision Resistance Wire
  • Alloy Composition: Cu ~77%, Ni ~23%, Mn ~1–2%
  • Diameter: 0.12mm (customizable: 0.05–1.00mm)
  • Tolerance: ±0.005mm
  • Form: Plastic spool (standard length: 800m/spool; custom lengths available)
  • Key Electrical Properties:
    • Resistivity (20°C): ~0.39 Ω·mm²/m
    • Temperature Coefficient of Resistance (TCR): ±50 ppm/°C
    • Maximum Operating Temperature: 300°C

  • Standards Compliance: GB/T 1234, ASTM B172, DIN 17471, RoHS 2.0, REACH
  • Manufacturer: Huona (Shanghai) New Material Co., Ltd.



Key Advantages


1. Stable Resistivity with Low TCR


CuNi23 (Alloy 180) offers consistent resistivity across typical operating temperatures, with a TCR of ±50 ppm/°C. This makes it ideal for applications where resistance drift must be minimized, without requiring the ultra-low TCR of more expensive precision alloys.

2. Balanced Resistivity for Compact Designs


With a resistivity of ~0.39 Ω·mm²/m, it enables the design of compact wire-wound resistors and heating elements, making it a cost-effective choice for mid-range resistance requirements.

3. Excellent Corrosion & Oxidation Resistance


The copper-nickel base forms a protective oxide layer, providing good resistance to atmospheric corrosion, moisture, and mild chemical environments. This ensures long-term reliability in industrial and consumer electronics applications.

4. Good Mechanical Strength & Formability


The wire has a tensile strength ≥400 MPa and elongation ≥25%, making it suitable for fine winding, forming, and soldering. It handles repeated bending without work-hardening excessively, supporting high-volume production.

5. Versatile & Cost-Effective


CuNi23 is widely compatible with standard soldering, welding, and insulation processes. Compared to higher-resistivity nickel-chromium alloys, it offers a more economical solution for applications that don’t require extreme operating temperatures.



Technical Specifications Table

Attribute Value (Typical)
Alloy Grade CuNi23 (Alloy 180 / Cuprothal 180)
Diameter 0.12mm (±0.005mm)
Form Plastic spool (800m/spool)
Resistivity (20°C) ~0.39 Ω·mm²/m
TCR ±50 ppm/°C
Max Operating Temperature 300°C
Tensile Strength ≥400 MPa
Elongation ≥25%
Surface Finish Bright bare copper-nickel finish (tin-plated optional)
Packaging Anti-oxidation spool packaging with moisture-proof wrapping



Typical Applications


  • Wire-Wound Resistors: Mid-range precision resistors for power supplies, control circuits, and consumer electronics.
  • Rheostats & Potentiometers: Resistance elements for variable resistors in industrial controls and laboratory equipment.
  • Low-Temperature Heating Elements: Small appliance heating wires, medical device components, and laboratory equipment.
  • Current-Limiting Elements: Overload protection resistors in power adapters and motor control systems.
  • Instrumentation Components: Resistance windings for analog meters and signal conditioning circuits.