What is a poly capacitor?
capacitors are electronic components that block the effects of DC voltages but allow the effects of alternating voltage to be passed. A capacitor used by a plastic polymer, such as polystyrene or polyester, is commonly called a polystyrene or polyester. Since the introduction of poly capacitors at the end of the 1950s, the improvement of plastics has allowed them to evolve together with electronics. Once they are rarely used, poly capacitors have become a standard general capacitor in almost all areas of electronics. Most capacitors have two boards, usually made of metal, such as aluminum or tantalum. Plates can be flat and parallel to each other, as in a poly capacitor, or roll for creating a spiral tube, as is the case with electrolytic capacitors looking for a can, also called capacitors. In addition, the plates can be a metal, foil or film segment depending on the capacitor and its intended use.
Space between two KO platesThe ndenzator is usually filled with dielectric material. Dielectric materials are substances that are nature insulators, but are permeable by electromagnetic fields and can be polarized. Many different gases, liquids and solids consider use as a dielectric in condensers. In the condenser polymer plastic, the dielectric material is solid polymer plastic. A number of different plastics are used as a dielectric, including polystyrene and polypropylene; However, polyester is by far the most common.
In operation, the electric current enters one capacitor line. Because there is a dielectric between condenser boards, it cannot pass directly from one board to another, which prevents the DC current between them. The electrical potential of the charged board causes the polarized electromagnetic field to be built between the two plates. While the DC currents are blocked, this field allows a current of alternatesgo through the current between two plates and capacitor. However, if the applied voltage is too high, the insulation ability of the dielectric exceeds, damages it and causes a phenomenon known as a schedule, allowing any electrical signal to pass until the capacitor is destroyed.
Field properties in the capacitor are determined by the properties of dielectrics. The ideal dielectric has the highest possible electrical insulation value to prevent disintegration, but is just as easily penetrated by an electromagnetic field. Thanks to this description, Plastics is perfect for dielectric materials. In addition, if the disintegration occurs, the increased operating temperature it causes, allows the poly-executor self-healing and continuing to function if the voltage is removed before the condenser is destroyed.
Other attributes of poly capacitors have added DOIR augmented use. Plastic can take an extremely long time to break up, which is when combined with their self -leaking abilities, the poly capacitors make the capacitors very stable and dLouho living. They are also relatively immune to moisture and many caustic substances, allowing them to use in a wide range of applications, although not all. Poly capacitors are adversely affected by high temperatures that can melt or otherwise distort plastic dielectric. In addition, due to the electrostatic nature of plastics, they are generally not suitable for high -frequency applications.