Introduction: Rubycon Corporation, headquartered in Nagano Prefecture, Japan, is a leading manufacturer of aluminum electrolytic capacitors dedicated to the development, manufacturing, and sales of electronic components. Since its establishment in April 1952, the production management has been strict and the product quality has been stable. The main raw materials for producing electrolytic capacitors, aluminum foil and electrolyte, are independently developed and produced by Rubycon Corporation, effectively ensuring product quality. As an internationally renowned brand of electrolytic capacitors, RUBYCON has been widely used in products such as energy-saving lamps, ballasts, LED lighting, electric meters, household appliances, switch mode power supplies, and photovoltaic inverters in China.