MKT1813347104R

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Film capacitors, also known as plasticizable capacitors, are a type of electrolytic capacitors characterized by their small size and high dielectric strength. The MKT1813347104R is an example of one such capacitor, and its application field and working principle can be explained in the following sections.

Application Field

The MKT1813347104R capacitor is a general-purpose capacitor with a wide variety of applications. This capacitor fits into PCBs as a radial leads component, which makes it extremely versatile and usable in most small power electronics. This includes applications such as voltage shift, snubbing, filtering, timing, and many others. Thanks to its small size, it can also be used in applications requiring a very low profile, such as surface-mount designs. Moreover, the capacitor performs well even in high-frequency circuits, making it ideal for high-precision sensor applications.

Working Principle

As they are film capacitors, the MKT1813347104R capacitor features a self-healing plastic dielectric layer. As opposed to traditional electrolytic capacitors, which have a thin layer of metal oxide film as the dielectric, the dielectric used in film capacitors is plastic. This plastic dielectric is much thicker than the metal oxide film, and it’s capable of self-healing any tiny defects caused by the electrolysis. The combination of a relatively thick and self-healing dielectric layer leads to an overall good performance of the capacitor, making it reliable and suitable for any type of environmentally tough conditions.

The MKT1813347104R capacitor is constructed from a two-layer structure. The first layer is the metalized polypropylene surface, and the second layer is the self-healing plastic dielectric. The two layers are separated by a very thin layer of alumina or silica, which acts as the dielectric. The capacitance values for these capacitors range from 0.47 µF to 40 µF, creating a wide range of applications.

The plastic film capacitors, such as the MKT1813347104R, are the most popular type of electrolytic capacitors due to their small size and high dielectric strength. The small size makes them ideal for use in applications requiring a very low profile, while the high dielectric strength gives the capacitor an excellent performance. Moreover, the self-healing plastic dielectric used in the MKT1813347104R capacitor ensures reliable operation even in tough environmental conditions.

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