Two closely spaced conductors separated by a non-conductive insulating medium constitute a capacitor. When a voltage is applied between the two plates of the capacitor, it stores electric charge. The capacitance of a 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, capacitive components are typically represented by the letter C.

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

With the rapid development of electronic information technology, the pace of digital electronic product upgrades is accelerating. Consumer electronics, primarily flat-panel televisions (LCD and PDP), laptops, and digital cameras, continue to grow in production and sales, driving the growth of the capacitor industry.

As one of the main electronic components, capacitors account for approximately 40% of the entire electronic component production. In recent years, with the rapid development of information technology and electronic devices, 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 major producer and exporter of capacitors worldwide.

From 2012 to 2017, the global capacitor market size expanded from $17.3 billion to $20.9 billion, with a CAGR of 3.84%. During this period, China's capacitor market size grew from 72.6 billion yuan to 98.7 billion yuan, with a CAGR of approximately 6.33%, higher than the world average. Currently, the global capacitor industry is dominated by Japan, the United States, and China, with Japan leading the way by monopolizing high-end components and possessing the strongest capabilities in electrolytic capacitors, ceramic capacitors, thin-film capacitors, and other industries.

According to data from the General Administration of Customs, from January to July 2018, China exported 60,616 tons of capacitor products, an increase of 10.7% year-on-year, with an export value of 2,696,733 thousand US dollars, an increase of 27.3% year-on-year. Imports of capacitor products amounted to 48,363 tons, an increase of 13% year-on-year, with an import value of 6,970,046 thousand US dollars, an increase of 64% year-on-year.

The downstream applications of capacitors mainly include: ① military market: used in aviation, aerospace, ships, weapons, electronic warfare, and other military equipment and weapons fields.

; ② Civil Industrial Market: Applied to system communication equipment, industrial control equipment, medical electronic equipment, rail transit, precision instruments, petroleum exploration equipment, automotive electronics, and other civil industrial fields; ③ Civil Consumer Market: Applied to laptops, digital cameras, mobile phones, audio and video recording equipment, and other civil consumer fields.

The capacitor industry analysis in the capacitor industry research report is based on authoritative national statistical data. It adopts a combination of macro and micro analysis methods, utilizes scientific statistical analysis techniques, and provides a detailed analysis of the capacitor industry while describing the industry's general situation. This includes the overall status of products, production conditions, key enterprise conditions, total output of major products, import and export situations, etc. The report mainly uses charts and tables to visually illustrate the industry's economic type composition, scale composition, operating efficiency comparison, production status, and foreign trade situation. It is an essential assistant for enterprises to understand the market situation of the capacitor industry. In terms of format, the report focuses on rich data and charts to highlight the readability and visibility of the article, avoiding clichés and empty talk. The report includes additional industry-related data, policy and regulation directories, key enterprise information, and industry memorabilia, providing investors and industry insiders with a vivid industry panorama.