SFT66S17.5K391B-F

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, which are sometimes known as polyester capacitors and mylar capacitors, are a type of capacitor based on a film of plastic or mylar sandwiched between two metal electrodes. They are known for their high stability and long lifespan, and are widely used for a variety of applications. The SFT66S17.5K391B-F is a film capacitor from the SFT series that is typically used in audio and power supply applications.

Film capacitors are primarily characterized by their dielectric material. The most common type are polyester film capacitors, which are made of thin polyester film that is extremely stable and durable. This dielectric material gives these capacitors a low dissipation factor and dielectric absorption, meaning that they are remarkably efficient at storing and releasing energy, and can withstand high voltages and temperatures. Additionally, polyester film capacitors are capable of carrying AC current with very little power loss, making them ideal for power filtering applications.

The SFT66S17.5K391B-F is a standard polyester film capacitor from the SFT series that is designed for general-purpose use, such as power rectification, energy storage, power conditioning, and audio filtering applications. The SFT66S17.5K391B-F capacitance value is 17.5 microfarads, with a rated voltage of 400 volts DC and a tolerance of ±10%.

The working principle of the SFT66S17.5K391B-F is based on the capacitance of the dielectric material. When a voltage is applied across the capactor\'s terminals, electrons are attracted to the positive terminal while a corresponding number of electrons are repelled from the negative terminal. This creates a charge separation in the dielectric material which stores energy. When the voltage is removed, the opposite process occurs and the stored energy is released.

The SFT66S17.5K391B-F is an ideal option for audio applications such as audio filter circuits, crossover networks, and equalizers. It is also well suited for power supply applications, such as power converters, battery backup systems, and DC-DC converters. Due to its metal oxide film and aluminum case construction, the SFT66S17.5K391B-F is an extremely reliable capacitor with excellent heat resistance and low leakage current.

In conclusion, the SFT66S17.5K391B-F is a polyester film capacitor from the SFT series that is commonly used for audio and power applications. It offers high stability and long life, and is capable of storing and releasing energy efficiently. Its AC current carrying capabilities make it ideal for power filtering applications, while its high voltage handling and low leakage current make it suitable for audio filtering and power supply applications.

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