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Red polyurethane enameled wire

Red polyurethane enameled wire

red polyurethane (PU) enameled copper wire is a high-performance magnet wire with a bright red insulation layer, engineered for precision winding applications. It combines excellent solderability, low dielectric loss, and reliable insulation, making it a top choice for electronic and electrical manufacturing.
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Core Performance

  • Heat Resistance Class: Class 105 (105°C continuous operating temperature)
  • Solderability: Direct soldering at 360–400°C without enamel removal, simplifying assembly and boosting production efficiency by 30%+.
  • Electrical Insulation: Breakdown voltage ≥350V (for 0.1mm diameter), low dielectric loss (tanδ < 0.22 at 1kHz), ideal for high-frequency circuits.
  • Mechanical Strength: Elongation rate ≥11%, abrasion resistance ≥5N (for 0.5mm diameter), withstands repeated winding without enamel cracking.
  • Corrosion Resistance: Moisture-resistant PU coating protects copper conductor from oxidation in dry indoor environments.

Dimensions & Tolerance

Nominal Conductor Diameter (mm)
Finished Outer Diameter (mm)
Tolerance (mm)
0.035
Max 0.045
±0.001
0.100
Max 0.117
±0.002
0.190
Max 0.220
±0.003
0.500
Max 0.560
±0.005
1.600
Max 1.750
±0.010

Application Fields

  • Electronics: Relays, solenoid valves, micro-motor windings, watch coils, printer head coils.
  • Electrical Equipment: Small transformers, inductors, high-frequency communication components.
  • Consumer Devices: Headphone coils, mobile phone vibration motors, laptop fan motors.

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