Double-Sided Smooth Rolled Copper Foil, 25 µm

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Double-Sided Smooth Rolled Copper Foil
Application: Electrode Current Collector for Electrochemical Systems, CVD/PVD Substrate, FPC/PCB
Product Overview: This rolled copper foil features a double-sided smooth finish and is characterized by excellent ductility, superior bending resistance, and high electrical conductivity. It is suitable for precision electrochemical and electronic applications.
Thickness: 25 µm (Tolerance: 0-1 µm)
Purity: > 99.8% (Typical: > 99.98%)
Areal Density: 220-225 g/m² (Typical: 222 g/m²)
Mass Resistivity: < 0.17 Ohm-g/m² (Typical: 0.168 Ohm-g/m²) Tensile Strength: > 30 kg/mm² (Typical: 41 kg/mm²)
Elongation at Room Temperature: > 3.5% (Typical: 4.2%)
Elongation at High Temperature: > 4.0% (Typical: 5.5%)
Roughness (Side A, Ra): < 0.2 µm (Typical: 0.12-0.15 µm)
Roughness (Side B, Ra): < 0.2 µm (Typical: 0.12-0.15 µm)
Roughness (Rz): < 3.0 µm (Typical: 1.3 µm)
Oxidation Resistance (130°C, 10 min): Pass
Packaging Unit: Roll
Standard Weights: 2 kg, or 4 kg per roll