CB037E0104JBA Capacitors

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Film capacitors, also known as plastic capacitors, are capacitors that typically consist of a thin film of plastic material dielectrically coated on metal substrate. The classifications of film capacitors are based on the type of dielectric material used, such as polyester, polycarbonate, polypropylene, polyester-polycarbonate, metalized polyester, metalized polypropylene, and so on.

CB037E0104JBA is an example of a film capacitor that utilizes a polyester film as its dielectric. It is a miniaturized rectangular metallicized polyester film capacitor with capacitance of 0.022µF, an operating temperature range of -55 °C to +105 °C, and a rated voltage of 50 VDC.

These capacitors offer significant advantages over other types of capacitors, including high stability, good resistance to heat and moisture, self-healing properties, and no reliance on electrolyte (liquid) as dielectric. In addition, polyester capacitors can be used in applications with high AC voltages, making them ideal for use in audio and RF applications.

The most common application for CB037E0104JBA film capacitors is in high-density device such as switching power supplies, motor control circuits, EMI/RFI filters, DC/DC converters and other electrical and electronic equipment.

The working principle of film capacitors, like that of any other capacitor, is based on the ability of capacitors to store electrical energy. This occurs by means of a dielectric material between the two conducting plates of the capacitor. An electric field is created within the capacitor when a voltage is applied, which causes the atoms of the dielectric material to be polarized. This polarization leads to the formation of an electric field within the dielectric. As the voltage is applied to the capacitor, electrical charge is accumulated on the plates, and a static electric field is created and maintained between the plates.

The amount of charge stored in the capacitor is proportional to the applied voltage and is directly affected by the size of the capacitor electrodes, the distance between them, and the dielectric material used. In the case of CB037E0104JBA capacitors, this is a thin polyester dielectric that is very stable, heat-resistant, and moisture-resistant.

In summary, CB037E0104JBA film capacitors are miniature rectangular polyester film capacitors designed for use in high-density electrical and electronic equipment such as switching power supplies, motor control circuits, and EMI/RFI filters. The working principle of film capacitors is based on the ability of capacitors to store electrical energy due to the electric field created within the capacitor when a voltage is applied.

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