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Great development prospect of capacitor products
Date of issue:2018-01-05 09:11:27  see:
With the development of electronic information industry and the popularization of home appliances, the capacitor industry has been unprecedentedly developed. In terms of quantity, quality and service, it meets the needs of the development of electronic whole machine and household appliances, and drives the development of relevant material industry, equipment industry and instrument industry. China has become a major producer of capacitors in the world.
In terms of sales volume, the production of capacitors is mainly concentrated in Japan, the mainland of China and Taiwan. China has become the world's largest producer of capacitors after Japan. In terms of quantity, since the reform and opening up, Japan, South Korea and Taiwan have shifted their capacitor manufacturing industry to the mainland of China, the world electronic information machine manufacturing industry has set up factories in the mainland of China, and multinational companies have purchased in the mainland of China. China has become a major producer and consumer of capacitors in the world.
The domestic market for the production of complete sets of capacitors has increased greatly, and China has become an important market for global capacitor consumption. There is a large space for development of capacitor industry from 2007 to 2010. The continuous emergence of new electronic information machines, household appliances, communication equipment, etc., has brought opportunities to the capacitor industry. Capacitor enterprises should comply with the market changes, do a good job in market operation, and constantly introduce products that meet the requirements of different complete machines, so as to become stronger. The development direction of various capacitor products is as follows:
Ceramic capacitor
Ceramic capacitors will still dominate the world capacitor market, while chip capacitors will dominate the ceramic and tantalum capacitor markets. Miniaturization, large capacity, high voltage, high frequency, anti-interference and array will still be the development direction of ceramic capacitors. Type 1005 chip ceramic capacitor has been popular, but 0603 has been put on the market, and 0402 has been developed. At present, monolith ceramic capacitors with capacity up to 100 μ F have been developed by using thin-layer and multilayer (600-800 layer) technology and inner electrode base metal technology, but manufacturers have been developing the manufacturing technology of monolith ceramic capacitors with capacity of 200 μ f or even more than 200 μ F.
Electrolytic capacitor
Small size, large capacity, long life, high temperature resistance and low equivalent series resistance are still the development direction of aluminum electrolytic capacitors. In 2000, Panasonic electronic components company developed wa series wound aluminum capacitors. The equivalent series resistance is 15 m Ω ~ 30 m Ω at 100 kHz ~ 300 kHz, and its capacity value is 2 ~ 18 times higher than the previous one. At the same time, the company has also put in chip aluminum capacitor with ultra small shape, its height is only 0.95mm, and its chip aluminum capacitor developed for automotive electrical system has a shock resistance of 30g It is said that this is the highest level in the industry at present; the continuous working temperature of BX series aluminum capacitors of Japan capacitor company has reached 150 ℃, and PS series capacitors with capacity of 560 μ f-1200 μ F have been put into operation by Japan Chemical capacitor company. Manufacturers are also developing aluminum capacitors with larger capacity and lower ESR.
Tantalum capacitor
Chip products continue to lead tantalum capacitors to miniaturization, large capacity, low impedance and low ESR. The production and application of functional polymer tantalum capacitors will be further expanded, and the CV value of tantalum powder will continue to increase. At present, the CV value of tantalum powder has reached 100000, but manufacturers (such as Elna company of Japan) have been developing tantalum powder with 150000 CV value. It is worth noting that engineers and technicians are developing niobium capacitors using niobium as dielectric material. Because the supply of niobium is 100 times of that of tantalum, and the appearance, structure and performance of the capacitor are similar to those of chip tantalum capacitor. Due to the cost, tantalum capacitor is not suitable for mass production of 1000 μ F grade products, and niobium capacitor can realize the mass production of such products.
Plastic film capacitor
The demand for metallized plastic film capacitors will increase, and the market of plastic film capacitors for information and communication equipment will continue to expand. High frequency, meeting safety standards, high temperature resistance, miniaturization and chip will be the development direction of the capacitor.

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