947D321K122CERSN

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Film capacitors are energy storage components that have been used in almost every part of industrial and commercial application fields. A typical film capacitor is a stack of alternating dielectric layers, each made of a dielectric material such as polypropylene, polyethylene, polystyrene, polyimide, or polyester, and a pair of conductive layers. The dielectric layers are separated and insulated from each other by means of a thin film or foil. The capacitance of a film capacitor is proportional to the thickness and area of the dielectric layer and inversely proportional to the distance between the conductive layers.

The 947D321K122CERSN is one such type of film capacitor. It is also known as a metallized film capacitor. The unique feature of this capacitor is that it is made up of two dielectrics, both of which are metallized, utilizing pressure sensitive adhesive material as a dielectric. This makes it ideal for applications where capacitance values need to be very high. Being a surface-mount device, this capacitor is also very suitable for high-density mounting requirements.

The working principle of the 947D321K122CERSN is essentially the same as other film capacitors. When a voltage is applied, a static electric field is created between the conductive layers. This electric field causes a small displacement current between the two dielectrics and the charges accumulate in each layer in an attempt to counteract the electric field. The resulting capacitance depends on the amount of charge in each dielectric, the permittivity of each material, and the distance between them.

Due to its advantageous features, the 947D321K122CERSN capacitor has become an important component in a wide variety of applications, ranging from industrial and automotive electronics to medical and home appliances. In industrial and automotive electronics, the capacitor finds use in power supplies and other electronic devices. Its excellent noise suppression characteristics make it ideal for this purpose. It has also become popular in medical applications, where its ability to store very high amounts of electrical energy makes it perfect for use in devices such as defibrillators or electrocardiographs.

In terms of its working principle, the 947D321K122CERSN capacitor operates in much the same way as any other film capacitor. It is an excellent choice for applications that require high capacitance and high levels of noise suppression. Its surface-mount design makes it ideal for high-density mounting applications, and its excellent dielectric properties make it highly effective in a variety of industrial, automotive, medical, and home applications.

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