944U520K142ABI

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are AC-only capacitors, made up of a resin-impregnated plastic film which is wound into a cylindrical configuration. The resin-impregnated plastic serves as the dielectric, while two metal electrode plates are wrapped around the exterior of the film. Film capacitors are used in a wide variety of applications, ranging from industrial power supplies and microprocessors to active filter networks.

The 944U520K142ABI is one of the latest innovations in film capacitors. This model combines the best properties of both polyester and polypropylene capacitors in a single, compact package. With its high capacitance and excellent temperature stability, it is able to provide a reliable, consistent performance in a variety of applications.

Application Field Of The 944U520K142ABI

The 944U520K142ABI is ideal for both off-line switching power supplies and UPS systems. Its high voltage rating and excellent temperature stability make it an ideal choice for these power supply applications. It is also used in active filters and network processing circuits, where its wide temperature range and low inductance make it an ideal choice.

The 944U520K142ABI has a dielectric made up of a combination of polyester and polypropylene. This ensures excellent temperature stability, as well as an extended working life. The capacitor also has low ESR, meaning that it can handle high ripple currents with ease, making it suitable for applications such as inverters and switch mode power supplies.

The 944U520K142ABI is also capable of withstanding high levels of surge and vibration. This makes it an ideal choice for applications in harsh environments, such as motors and motor drives. Its high current capability and high temperature range make it suitable for use in motor start circuits.

Working Principle Of The 944U520K142ABI

The 944U520K142ABI utilizes a combination of two layers of dielectric materials, polyester and polypropylene, to provide its excellent performance. Polyester is used for the dielectric layer closest to the electrodes, while polypropylene provides a capacitive layer which is more resistant to temperature change than polyester. Together, these two dielectric materials form a capacitance-electrode structure, allowing the 944U520K142ABI to handle high voltage and high ripple current.

The 944U520K142ABI is also equipped with two metalized electro-plates, which help to spread the heat generated by the capacitor during operation. This helps to reduce the overall temperature of the capacitor and improves its overall performance. The capacitance of the 944U520K142ABI also remains unaffected by the temperature.

Finally, the 944U520K142ABI also has a wide temperature range of -40°C to +85°C, meaning it can be used in applications which require a wide temperature range. Furthermore, it is capable of withstanding high levels of vibration, which makes it suitable for harsh environment applications.

In summary, the 944U520K142ABI is a high performing film capacitor which is suitable for a wide variety of applications. It combines the best properties of polyester and polypropylene capacitors in a single, compact package, providing excellent temperature stability and an extended working life. Its high voltage rating and wide temperature range make it suitable for harsh environment applications, such as motors and motor drives. Finally, its low ESR and high current capability make it ideal for switch-mode power supplies.

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