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A 50% voltage derating is recommended and generally accepted as the industry standard; e.g. a 50V solid tantalum capacitor should never be exposed to an actual application voltage above 25V. Solid tantalum capacitors are very reliable components if the proper care is taken and all design guidelines are carefully followed.
The market for electrolytic capacitors in 2008 was roughly 30% of the total market in value aluminium electrolytic capacitors—US$3.9 billion (22%); Tantalum electrolytic capacitors—US$2.2 billion (12%); In number of pieces, these capacitors cover about 10% of the total capacitor market, or about 100 to 120 billion pieces. [117]
Globally, the market for fixed capacitors was estimated at US$18 billion in 2008 for 1,400 billion (1.4 × 10 12) pieces. [75] This market is dominated by ceramic capacitors with estimate of approximately one trillion (1 × 10 12) items per year. [76] Detailed estimated figures in value for the main capacitor families are:
The market for aluminum electrolytic capacitors in 2010 was around US$3.9 billion (approximately €2.9 billion), about 22% of the value of the total capacitor market of approximately US$18 billion (2008). In number of pieces these capacitors cover about 6% of the total capacitor market of some 70 to 80 billion pieces. [75]
A capacitor is a passive device on a circuit board that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. This is a list of known capacitor manufacturers, their headquarters country of origin, and year founded. The oldest capacitor companies were founded ...
Today, capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies. In resonant circuits they tune radios to particular frequencies. In electric power transmission systems, they stabilize voltage and power flow. [2]
In 1958, KEMET changed its market focus to the tantalum capacitor. In 1969, the company entered the market of ceramic capacitors. [1] In 1990, KEMET Electronics Corporation was acquired from Union Carbide and after two years, the company went public on the New York Stock Exchange under the symbol KEM. This ended all ties with Union Carbide.
A typical motor start capacitor. A motor capacitor [1] [2] is an electrical capacitor that alters the current to one or more windings of a single-phase alternating-current induction motor to create a rotating magnetic field. [citation needed] There are two common types of motor capacitors, start capacitor and run capacitor (including a dual run ...