103PPB202K

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Film Capacitors

Film capacitors are polarised capacitors that consist of two or more layers of thin dielectric material– typically a plastic film– placed between two metal plates. Film capacitors can be classified into two different types: Metallized polypropylene and polycarbonate capacitors. The 103PPB202K capacitor is a metallised polypropylene film capacitor that belongs to the family of film capacitors.

103PPB202K Application Field

The 103PPB202K film capacitors are typically used in applications where low noise, high stability and high energy performance is necessary. It is also used as coupling and decoupling capacitors, DC-Link capacitors for high power applications, across the line capacitors, and for motor start applications. In addition, the 103PPB202K can be used for DC link applications for solar panels, welding applications, UPSs, Televisions, Photocopy machines and in capacitor discharge welding applications.

103PPB202K Working Principle

The 103PPB202K has internal electrodes that are spaced apart with a dielectric material in-between. When a voltage is applied across the capacitor, an electric field is generated between the electrodes which causes a charge to accumulate on the surface of the dielectric. This charge is then stored in the dielectric as an electrostatic field. This stored electrical energy can be released upon the removal of the applied voltage. The larger the surface area of the dielectric material, the higher the capacitance of the capacitor.

The 103PPB202K also has the ability to provide a high stability of capacitance values over a wide frequency range. Its low loss performance and low temperature coefficients make it suitable for applications requiring high-frequency switching and circuit resonances. The non-polar design of the 103PPB202K also provides symmetrical electrical characteristics in both leads, making it suitable for AC and DC applications.

The 103PPB202K has a high ripple current capability, and its self-healing properties make it well suited for filtering, and power applications where a fail-safe feature is required. It also has a low ESR (Equivalent Series Resistance) rating which makes it ideal for low impedance applications.

Conclusion

The 103PPB202K film capacitor is an excellent choice for high voltage and high frequency applications, such as power supplies, motor starters, and capacitor discharge welding applications. Its low ESR rating and high ripple current capability make it particularly suitable for power applications where a fail-safe feature is required. Additionally, its high stabilisation over a wide frequency range and non-polar design make it suitable for both AC and DC applications.

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