Stock code: 601677
Stock code: 601677
In the field of electronic components, the aluminum plate used for capacitor is a critical material, as its performance directly impacts the lifespan and reliability of capacitors. With the trend toward miniaturization and higher efficiency in electronic devices, there are increasing demands for the conductivity, corrosion resistance, and workability of capacitor-grade aluminum plates. So, which alloy is more suitable for capacitor applications? This article will analyze the selection logic for aluminum plate used for capacitor based on practical application requirements.
Pure aluminum was traditionally chosen for capacitor plates due to its high conductivity, but its low strength and corrosion resistance limit its use in complex environments. In contrast, alloy aluminum plates, enhanced with small amounts of metals (such as manganese and magnesium), significantly improve strength and corrosion resistance while maintaining conductivity. For instance, in humid or high-temperature environments, alloy aluminum plates better resist oxidation and corrosion, extending capacitor lifespan. This makes them a superior choice for modern electronic devices.
The 1060 pure aluminum plate, with a purity of over 99.6%, offers excellent conductivity and low cost, making it a traditional material in the capacitor industry. It is ideal for applications requiring high conductivity but with lower demands for strength and corrosion resistance, such as small capacitors or indoor electronic components. However, its soft nature makes it prone to deformation during processing, and long-term oxidation may degrade performance. Thus, it is more suitable for cost-sensitive projects in stable environments.
The 1070 pure aluminum plate has conductivity similar to 1060 but features optimized composition for better processing performance. It performs more stably in stamping and stretching processes, making it suitable for manufacturing complex-shaped capacitor shells or electrodes. For scenarios requiring both conductivity and processing efficiency, the 1070 plate provides a flexible solution, widely used in mid- to low-end electronic devices.
The 3003 alloy aluminum plate, with added manganese, significantly improves corrosion resistance and strength while maintaining good conductivity. It is particularly suitable for capacitors in outdoor or high-humidity environments, such as new energy vehicle battery packs and solar inverters. Its corrosion resistance reduces maintenance costs, while higher strength supports compact designs, making it a preferred material for high-end electronics.
As a global leader in aluminum materials, Henan Mingtai Aluminum has years of expertise in producing capacitor-grade aluminum plates, offering a full range of solutions from 1060 and 1070 pure aluminum to 3003 alloy plates. With advanced manufacturing and strict quality control, every plate meets international standards, and customization in thickness and width is available. Whether for cost-sensitive small capacitors or high-reliability industrial equipment, Mingtai provides one-stop material supply services.
In the selection of capacitor-grade aluminum plates, alloy plates are becoming mainstream due to their balanced performance. Henan Mingtai, with its diverse product line, consistent quality, and flexible customization, is helping the global electronics industry overcome material challenges and achieve more efficient, durable innovations. For manufacturers prioritizing quality and efficiency, Mingtai is undoubtedly a trusted partner.
