Emerging industries provide opportunities for thin film capacitors to replace aluminum electrolytic capacitors

China is the world's largest capacitor producer and exporter, and it is also a consumer of capacitors. In the "12th Five-Year Plan" development plan of the capacitor industry announced recently, it is clearly stated that the development priorities of capacitors during the "12th Five-Year Plan" period are: new energy supporting capacitors, power type inverter capacitors, power type frequency conversion capacitors, and automotive electronic matching capacitors. . It can be said that emerging industries such as energy conservation and environmental protection, information technology, new energy, new materials and new energy vehicles have brought new opportunities for the development of capacitors.

Domestic capacitor companies should be more forward-looking At present, the global capacity of capacitors is mainly concentrated in Japan, Taiwan and China. Compared with the former two, domestic capacitors have large capacity, but they are mostly low-end products. Therefore, Pan Dao, general secretary of the capacitor branch of the China Electronic Component Industry Association pointed out: “The domestic capacitor companies should adapt to market changes, pay close attention to the forward-looking industry, and continuously introduce products that meet different requirements for complete machines in order to become bigger and stronger. Current capacitor manufacturers should Concerned about the development of solar photovoltaic, wind power, tidal power, energy-saving lamps, electric vehicles, hybrid vehicles, automotive electronics, subways, high-speed rail, DC transmission and transformation, triple play, high-definition televisions, set-top boxes, mobile TV and other industries."

The advantages of aluminum electrolytic capacitors are still huge. Capacitors account for about 40% of the total electronic components used, while aluminum electrolytic capacitors account for 34% of the total output of capacitors. Due to the advantages of wide voltage and capacity range, large storage capacity, and low price, aluminum electrolytic capacitors account for 44% of consumer electronics applications. They are mainly used in household appliances such as computers, color TVs, air conditioners, cameras, and CNC lathes.

With the continuous improvement of technical progress in aluminum electrolytic capacitors and continuous enrichment of product structure, it has been widely used in automotive electronics, new energy, aerospace and military industries in recent years. It is mainly used in the manufacture of energy-saving lamps, inverters, inverters, uninterruptible power supplies, etc. This will further increase the market share of aluminum electrolytic capacitors in the entire capacitor market. High-frequency, low-impedance, long-life, wide temperature, ultra-small, etc. will be the development direction of aluminum electrolytic capacitors.

Film Capacitors Take advantage of the advantages Compared with aluminum electrolytic capacitors, film capacitors have the advantages of good reliability, stable performance, and large capacity, which are more suitable for outdoor harsh natural environments. Especially in the fields of new energy vehicles, wind power generation, solar power generation, high-speed rail and light rail trains and high-voltage inverters, film capacitors are preferred because of their advantages in life span, temperature and voltage.

It is understood that the international wind giant Vestas and other manufacturers have begun to use film capacitors, while the Toyota New Energy Automotive Prius II replaces aluminum electrolytic capacitors with film capacitors. In China, the giant electrolytic capacitors of aluminum electrolytic capacitors Jianghai Co., Ltd. also spent 200 million yuan to build 10 high-voltage film capacitor production lines to form an annual output of 1 million high-voltage large-capacity film capacitors, but also for the preparation of future film capacitors for new energy vehicles.

As the world's top five film capacitor manufacturers, Farah Electronics also vigorously expands the market for variable frequency home appliances and new energy. The AC film capacitors produced by the company can be used in many fields of new energy: hybrid vehicles, wind power, and solar energy. However, the disadvantages of large size and high price of thin film capacitors also have a significant impact on market share. In order to meet the needs of new industries, high frequency, large capacity, high current, low impedance, high voltage, high dv/dt characteristics will be the direction of development of film capacitors.

Film capacitor PK aluminum electrolytic capacitor, who will perform in the future?

At present, the market capacity of aluminum electrolytic capacitors in the new energy market is still greater than that of film capacitors, but with excellent performance, the penetration rate of film capacitors is also rising. In the future, are film capacitors who replace aluminum electrolytic capacitors or differentiate the market according to the high voltage range? At the upcoming 78th China Electronics Show (CEF.com.cn/fall), organized by China Electronic Equipment Corporation and China Electronic Component Industry Association, organized by China Electronic Business Magazine and China Electronic Components Industry Association's capacitor branch. The “Application and Selection of Capacitors Seminar” will focus on the application prospects and market development of these two types of capacitors in green emerging industries, and provide engineers and procurement personnel with reference for selection and application design, and upgrade the Chinese domestic engineers and procurement staff. Design and procurement capabilities.

The well-known capacitor companies at home and abroad who have participated in the previous China Electronics Show and capacitor seminar include: Farah Electronics, TDK, EPSON, KEMET, YAGEO, TAIYO YUDEN, MURATA, Lilong Electronics, Jianghai, Aihua Group, Zeng Shentang, Yiyang Capital Jiang, Fenghua Hi-Tech, Yuyang Technology, Changzhou Huawei, BDC International, Shanghai Aowei, Sanhuan Group, Songsong, Meilong Electronics, Heiketai Electronics, Qixing Capacitors, Ice Ocean Electronics, Puze Industrial, Shenzhen Rongliang Electronics , Fujian Torch Electronics. Where will the “Twelfth Five-Year” development plan bring opportunities and challenges for capacitors? In the future new energy market, who will lead the aluminum electrolytic capacitors and film capacitors? At our seminars, you will find answers with the industry department directors, experts, and vendors we invite.