What are the damage factors of film capacitors? |Focus on mid-to-high-end brand capacitor manufacturers

Film capacitors are widely used in modern electronic products, and there are many independent manufacturers on the market. Many brands have caused poor quality capacitors and easily damaged due to their own raw materials and manufacturing processes. Therefore, we must be cautious when selecting capacitors. For example, Shenmao is a well-known and powerful brand in China, which is worthy of trust! On the other hand, humidity is also the main reason for the deterioration of the electrical performance parameters of film capacitors. We all know that molecules have strong diffusivity, and the dielectric constant of water is large, and the loss is also large, which leads to a sharp deterioration of the electrical properties of the capacitor, such as the decrease of insulation resistance and pressure strength, the increase of dielectric loss tangent and the capacitance Variety. Especially when the ambient temperature rises, the diffusion ability of water molecules increases. Therefore, the high temperature and high humidity environment (such as 85°C, 85 percent RH) has a more significant impact on the electrical performance of the capacitor, resulting in product failure rate. Increase, reduce reliability.

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