WMF2D47K

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Film capacitors are an important type of capacitor that enables a range of important applications. They are widely used in industries, ranging from the electronics sector to the automotive sector. This article will discuss the application field and working principle of the WMF2D47K capacitor.

Firstly, the application field of the WMF2D47K is quite broad. It is widely used as an AC filter capacitor, snubber capacitor and across-the-line motor starting capacitor. With its low intrinsic capacitance loss, low ESR and high pulse power capability, its ideal for applications such as energy storage, power factor correction, DC link and AC motor drive systems. The power rating of the WMF2D47K is up to 630Vac, and the operating temperature range is from -55 C to +105 C.

Now let’s take a look at the working principle of the WMF2D47K film capacitor. It is constructed of a core composed of polypropylene film and a dielectric layer. The dielectric layer is a metallized polypropylene film, which is composed of an aluminum or copper film applied to the base film. This core is then wrapped in an insulation, and the assembled core is then sprayed with a protective epoxy coating.

The metallic coating on both sides of the polypropylene film creates an electrical charge. When an electrical potential difference is applied to the capacitor, the charges in the metallic layers interact, causing an electric field to be generated. This electric field increases the capacitance in the capacitor and enables it to store electrical energy.

In conclusion, the WMF2D47K is a film capacitor with a broad range of applications, from power factor correction to AC motor drive systems. Its low intrinsic capacitance loss, low ESR and high pulse power capability make it ideal for high power applications. Its working principle is based on the interaction of the metallic layers applied to the polypropylene film core, and the generated electric field increases the capacitance of the capacitor, allowing it to store electrical energy.

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