ECW-HA3C912H4

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Film capacitors are a type of capacitors which are made up of two electrodes and a dielectric between them. These capacitors are mainly divided into two major categories, having differing physical properties and usage requirements. The two categories are metallic film capacitors and plastic film capacitors. ECW-HA3C912H4 is among the type of plastic film capacitors.

ECW-HA3C912H4 is a polypropylene dielectric film capacitor with high capacitance, excellent self-healing properties, superior electrical stability, low dissipation factor, high insulation resistance, robust structure and an operating temperature range of -55ºC to +85ºC. Specifically, it is available in a smaller case size with higher voltage ratings than other film capacitors while retaining its good AC properties. It is designed mainly for voltage self-healing and voltage transformation in communication devices, such as high frequency amplifiers, low/medium voltage dynamic compensation, UPS, inverters, etc.

The working principle of the ECW-HA3C912H4 film capacitor is based on the capacitance between two metal plates. An electrical field is created between the plates when a voltage is applied across them. Through this field, oppositely charged particles, such as electrons, protons, and ions, are attracted to one another and form an electrical circuit. The capacitor operates when current flows from one plate to the other, resulting in electrical energy being stored in the capacitor. The capacitor stores this energy until it is needed, at which point it releases it in one brief burst.

The metallic layer of the ECW-HA3C912H4 is made from polypropylene which is a dielectric material with superior electrical insulating properties. A dielectric substance is necessary in order to reduce the amount of electrical energy that would otherwise flow between the two plates. The thickness of the polypropylene layers between the electrodes determines the capacitance of the capacitor. The thicker the layer, the higher the capacitance.

The unique feature of the ECW-HA3C912H4 is its self-healing property that allows it to recover from high current and voltage stress without dielectric breakdown. The self-healing property is enabled by a thin metal oxide coating that isolates and protects each layer of polypropylene from the other. When the dielectric material sustains a high voltage, the oxide coating will vaporize and form an air gap, which isolates the damaged layer from the other layers and prevents current from flowing between the electrodes.

The ECW-HA3C912H4 is an ideal solution for applications such as telecommunication systems, radio frequency amplifiers, pulse transformers, inverters, UPS applications, and others. Its high capacitance and self-healing properties allow it to withstand high voltages and currents to ensure a reliable performance. Additionally, its robust construction and compact size make it easy to install in applications.

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