MPXQD47K

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 polypropylene film capacitors, offer a variety of applications in the electrical market where high insulation resistance, heat resistance, and extended life are required, such as in the manufacturing of computers and circuitry boards. The specific type of film capacitor discussed here is the MPXQD47K, its application field, and its working principle.

The MPXQD47K is a non-inductive polypropylene film capacitor with an 8mm diameter, a 48V DC rating, and a 4.7μF capacitance. This type of capacitor is designed primarily for audio coupling applications, especially in higher frequencies. The MPXQD47K has been designed for use in audio circuits and across loudspeaker systems, as well as for high frequency signal coupling and decoupling applications in industrial and high-power applications.

It has a low ESR and therefore allows for consistent frequency response and low distortion. The MPXQD47K also has an excellent power rating and temperature range of -25°C to +85°C. In terms of safety, the capacitor is rated according to the UL 94V-O rating, meaning it will remain stable in temperatures up to 140°C.

The working principle of the MPXQD47K is simple and relies on the electrostatic field that is created by two layers of metal foil, wound together to form an electrical bond. The combination of the metal foils with the polypropylene film creates an electrical barrier which limits the conduction between the two layers. As a result, any electrical current that passes through the capacitor must first pass through the capacitor’s dielectric. As the dielectric material allows only a certain amount of electrical charge to pass through it, the capacitor can store an amount of electrical energy. This is known as capacitance.

The components of the MPXQD47K also include an aluminum electrolyte, a resin-coated paper liner, and a plastic dielectric. The aluminum electrolyte is used to reduce the ESR, while the paper liner remains stable at higher temperatures and helps to prevent the foil from shorting out. The dielectric material also helps to reduce the heat of the foil, thereby reducing the chance of arcing.

The MPXQD47K is an ideal choice for many applications due to its high insulation resistance, extended life, and temperature range. In addition, as with any capacitor, it is important to select the correct type of capacitor for the application, to ensure that the desired performance is achieved. It is also important to consider the safety ratings when selecting a capacitor, to make sure that it is suitable for your needs.

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