MKT1813510254

Film Capacitors

Film capacitors are a special type of capacitor that use plastic or foil based films as the insulation medium and electrodes. They are usually in the form of a cylindrical structure with the two foil layers separated by the film dielectric. Film capacitors are made by coating individual capacitor plates, usually with metalized polyester, polypropylene and ceramic films, into a winding. The characteristic feature of film capacitors is their high-dielectric strength, and they are capable of blocking higher voltage than other types of capacitors.

MKT1813510254 Application Field and Working Principle

MKT1813510254 is a type of film capacitors, and they are a widely used component, playing an essential role in a variety of electronic circuits. MKT1813510254 capacitors are mainly used in coupling, filtering, and bypassing applications. In a coupling application, the capacitors connect two circuits together to pass an AC signal, while blocking any direct current. The capacitors can also be used for filtering applications, where they are often used in LC circuits to remove unwanted frequencies or noise from a signal. In bypassing applications, a capacitor is placed in series with an AC signal to temporarily store energy, allowing for filtering or dampening the signal. The capacitors can also act as voltage-dampers, stabilizing a power supply by limiting the amount of passed voltage.

MKT1813510254 capacitors are an electrochemical type containing a film dielectric between two plates. The two plates are formed from electroplated aluminum with a thin layer of metal that is directly deposited onto the film. This layer acts as an insulating layer, providing isolation between the two plates and allowing them to operate as a capacitor. The capacitance value is dependent on the area and distance between the two plates, with the distance between them also playing an important role in the electrical characteristics. The dielectric constant of the plastic also affects the total capacitance value, as it determines the material’s ability to hold charge.

MKT1813510254 capacitors are also typically polarised devices, which means that they can only be used in a certain orientation, with the marking on the capacitor indicating the negative and positive terminals. This polarisation means that the capacitors must be connected the right way round as negative current will reverse the direction of signal passing through the capacitor. The capacitors also have a rated voltage, which indicates the maximum voltage that can be applied to the device without damaging it.