Two conductors that are close to each other, with an insulating medium placed between them, form an electric capacitor. When a voltage is applied between the two plates of the capacitor, the capacitor will store electric charge. The capacitance of the capacitor is numerically equal to the ratio of the charge on one conductive plate to the voltage between the two plates. The basic unit of capacitance is the farad (F). In circuit diagrams, the letter C is usually used to represent the capacitor component.

Capacitors play a crucial role in circuits such as tuning, bypassing, coupling, and filtering. They are used in the tuning circuits of transistor radios, CD players, and tape recorders, as well as in the coupling and bypass circuits of color televisions.

With the rapid development of electronic information technology, the update cycle of digital electronic products is getting faster and faster. Products such as flat-panel televisions (LCD and PDP), laptops, and digital cameras, which account for the majority of consumer electronic products, have seen a continuous increase in production and sales, driving the growth of the capacitor industry.

Capacitors, as one of the main electronic components, account for approximately 40% of all electronic components. In recent years, with the rapid development of information technology and electronic equipment, as well as the transfer of international manufacturing to China, the demand for capacitors has shown an overall upward trend. China's capacitor industry has also rapidly developed into a world-leading producer and exporter of capacitors.

From 2012 to 2017, the global capacitor market size expanded from 17.3 billion US dollars to 20.9 billion US dollars, with a CAGR of 3.84% for a stable growth. Meanwhile, the capacitor market size in China increased from 72.6 billion yuan to 98.7 billion yuan during the same period, with a CAGR of approximately 6.33%, which was higher than the world average. Currently, the global capacitor industry landscape is dominated by Japan, the United States, and China. Among them, Japan holds the leading position and monopolizes high-end components, having the strongest capabilities in industries such as electrolytic capacitors, ceramic capacitors, and film capacitors.

The customs general statistics show that from January to July in 2018, China exported 60,616 tons of capacitor products, with a year-on-year growth of 10.7%, and the export value was 2,696,733 thousand US dollars, with a year-on-year growth of 27.3%; the import of capacitor products was 48,363 tons, with a year-on-year growth of 13%, and the import value was 69,700,460 thousand US dollars, with a year-on-year growth of 64%.

The downstream application of capacitors is mainly as follows: ① Military market: Applied in military fields such as aviation, aerospace, ships, weapons, electronic countermeasures, etc., for weaponry and equipment; ② Civil industrial market: Applied in fields such as system communication equipment, industrial control equipment, medical electronic equipment, rail transit, precision instruments and equipment, oil exploration equipment, automotive electronics, etc., for civil industrial sectors; ③ Civil consumer market: Applied in fields such as notebook computers, digital cameras, mobile phones, audio and video recording equipment, etc., for civil consumer sectors.

The electrical capacitor industry report's data analysis on the electrical capacitor industry is based on authoritative national statistics. It adopts a combination of macro and micro analysis methods and utilizes scientific statistical analysis techniques. While describing the overall picture of the industry, it conducts detailed analysis of the electrical capacitor industry, including the overall status of products, production conditions, the status of key enterprises, the total output of major products, import and export situations, etc. The report mainly uses charts and tables to clearly illustrate the economic type composition, scale composition, business efficiency comparison, production status and foreign trade situation of the industry. It is an indispensable assistant for enterprises to understand the market situation of the electrical capacitor industry. In terms of form, the report mainly features rich data and charts, highlighting the readability and visual appeal of the article, avoiding clichés and empty talk. The report also includes data related to the industry, directories of policies and regulations, information of major enterprises and the history of major events in the industry, providing investors and industry professionals with a vivid panoramic view of the industry.