offer all kinds of Capacitors informations

Reservoir capacitor

The pulsating DC from an AC rectifier (either half-wave or full-wave) usually needs to be smoothed before use. This can be done using a Reservoir capacitor.

Photoflash capacitor

A photoflash capacitor is a capacitor used in flash cameras, professional flashes, and solid-state laser power supplies. Their typical purpose is to power a high voltage flash tube, which then illuminates a photographic target or optically pumps a laser rod. As flash tubes require very high current to operate, photoflash capacitors are designed to safely supply high discharge current pulses without excessive internal heating. Compared with electrolytic capacitors usually used for power supply filtering at power frequency, a photoflash capacitor is designed to have lower series inductance, similar or higher capacitance value, (often) a higher rated voltage, and a low series resistance, Above about the photoflash capacitor information content.

Switched capacitor

Switched Capacitor is a circuit design technique for discrete time signal processing. It works by moving charges between different capacitors when switches are opened (off) and closed (on). Usually, non-overlapping signals are used to control the switches, so that not all switches are on simultaneously, Above about the Switched capacitor information content.

3mm, SMD Ceramic Trimmer Capacitors

1. Miniature and low profile capacitors
2. Color-coded case according to its capacitance range for easy visual idenfication.
3. Mountable by an automatic placer
4. Easy adjustment

3mm, SMD, Special Ceramic Trimmer Capacitors

1. Ultra miniature size with external dimensions of 3.2(W) x 4.5(L) x 1.5(T)mm
2. Designed for reflow soldering
3. Lowest capacitance drift
4. Very good Q and high resonant frequency
5. Color coded case permits easy identification
...

Silver mica capacitor

Silver mica capacitors are high precision high stability high reliability capacitors. They are available in small values, and are mostly used at high frequencies, Above about the Silver mica capacitor information content.

Variable capacitor

A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C circuits to set the resonance frequency, e.g. to tune a radio (therefore they are sometimes called tuning capacitors), or as a variable reactance, e.g. for impedance matching in antenna tuners, Above about the Variable capacitor information content.

Tantalum electrolytic capacitors

Tantalum electrolytic capacitors are a step up from aluminum capacitors.  They come in a number of types with different advantages, but in general, they have smaller size, lower leakage, lower dissipation factor, lower ESR, more stable capacitance over temperature, and good service life.  Tantalum capacitors aren't made in the monster sizes that aluminum capacitors are, but are available to several hundred µF in common voltage ratings (to about 100 volts) and to several thousand  uF at low voltage (6-10 volts).

Tantalum capacitor

Tantalum capacitors are a form of electrolytic capacitor. However, some forms of them are non-polar, containing two capacitors connected in series (negative to negative). In comparison with aluminium electrolytic capacitors, they are for similar capacitance and volume ratings generally more expensive, with lower effective series resistance. They usually have longer life, especially at moderately elevated temperatures. For surface mount devices, they are generally smaller.

Tantalums exploit the tendency of tantalum to form a protective oxide surface layer. They use tantalum powder, pressed into a pellet shape, as one "plate" of the capacitor with the oxide as the dielectric, and an electrolytic solution or conductive solid as the other "plate". Because the dielectric layer can be very thin (thinner than the similar layer in, for instance, an aluminium electrolytic capacitor), a high capacitance can be achieved in a small volume. Because of the size and weight advantages, Tantalum capacitors are useful in portable telephones, pagers, personal computers, and automotive electronics.

Electrochemical capacitors

Historical introduction

Electrochemical capacitors provide a mode of electrical charge- and energy-storage and delivery, complementary to that by batteries. The first electrochemical capacitor device was disclosed in a General Electric Co. patent in 1957 to Becker but was of a crude nature, employing porous carbon. Later work by Sohio (1969) described a so-called "electrokinetic capacitor" utilizing porous carbon in a non-aqueous electrolyte which enabled it to be charged up to about 3 V, though the operation of the device was not "electrokinetic" in nature, a misnomer. In 1971, Trasatti and Buzzanca recognized that the electrochemical charging behavior of ruthenium dioxide films was like that of capacitors. Between 1975 and 1980, the present author and his co-workers, under contract with the then Continental Group Inc., carried out extensive fundamental and development work on the ruthenium oxide type of electrochemical capacitor (Conway, 1997) which behaves as a surface- redox pseudocapacitance (see below). The whole field has burgeoned since about 1990 and is very active in fundamental, and R&D directions, Above about the Electrochemical capacitors information content.