684MWR630K

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Film capacitors also known as plastic film capacitors, foils, metallized dielectrics and flexible capacitor film are alternating current capacitive elements. They are characterized by a wide range of capacitance values and very low dissipation factor or dielectric losses in comparison to other capacitors. They are widely used because of their high dielectric strength and stability.

Metallized polyester film capacitors are the most widely applied type of film capacitors. The dielectric consist of polyethylene terephthalate film, covered on both sides with metal layers, primarily aluminum. The metals reduce the capacitance dissipation factor and enhance the dielectric strength. For this reason the dielectric strength of polyester film capacitors is much higher than other electrolytic or paper capacitors. The 684MWR630K is an example of a metallized polyester film capacitor. It has a capacitance of 630KuF (microFarads) and a working voltage of 250VAC (Volts Alternating Current).

The 684MWR630K is generally used in circuits requiring high capacitance over a wide range of working voltages. Due to its high capacitance and working voltage it can be used in circuits where large, low cost, capacitance values are required. It is particularly useful for low frequency applications ranging from >50Khz and at high operating temperatures of up to +85°C. It is also useful for applications such as resistors and transistors in order to decouple a signal or to provide a decoupling capacitance across a resistor to reduce the voltage ripple and therefore reduce signal distortions.

The working principle of a film capacitor is very simple. It is made of two electrodes that are separated by a dielectric material. This dielectric material can be a thin sheet of plastic or metal foil. When an alternating current passes through it, the current is alternately blocked and allowed to flow. This creates a capacitance, which is measured in Farads. The capacitance is determined by the area of the electrodes, the distance between them, and the dielectric constant of the material used.

In addition to providing capacitive values to different types of circuits, film capacitors also provide filtering and energy storage capabilities. This is due to the reactance between the plates. The reactance is inversely proportional to the frequency of the alternating current, meaning that the capacitor will filter out any high frequency components of the signal. Film capacitors also have excellent temperature stability, making them an ideal choice for use in applications where temperature fluctuations occur frequently.

The 684MWR630K is ideal for any application where a stable, electrostatic capacitance is needed, and is used in a wide variety of consumer electronic products, in industry, and in aerospace engineering. Its stability and high dielectric strength make it a great choice for applications where it must withstand high voltages and be able to retain its capacitance value.

The specific data is subject to PDF, and the above content is for reference