B32912A3104K000

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Film capacitors, usually known as plastic film capacitors, are one of the most widely used varieties of capacitors. The B32912A3104K000 is a special type of film capacitor designed to offer high capacitance, low losses and low ESR in a wide range of applications. Its application fields and working principle will be described in the following sections.

Application Field

The B32912A3104K000 is designed to provide superior electrical performance and reliability in a wide range of applications. These applications include power supplies, motor drives, AC motor drives, audio circuits, RF and filter networks, etc. The capacitor is also suitable for battery-powered applications, automotive systems, and high-altitude applications due to its superior capacitance stability and long-term performance. The capacitor is also a low-loss dielectric device, making it ideal for high frequency applications such as switched mode power supplies and other pulse power systems.

Working Principle

The B32912A3104K000 is a polypropylene (PP) film capacitor with a dielectric of metalized polypropylene film (MPC), surrounded by its own electrolyte as well as a metal foil. This type of capacitor is constructed by winding metalized polypropylene film around two small rods. The dielectric of metalized polypropylene films prevents leakage current and works as a dielectric between the two metal plates, allowing charge to be stored on each plate as electrons. When a voltage is applied to the capacitor, an electrical field is created in the dielectric, which attracts charge. This electric field opposes the application of voltage, and the capacitor stores electrical energy when the applied voltage reaches its breakdown limit. The polarity of the charge stored on the plates depends on the polarity of the applied voltage.

The capacitor’s ability to store electrical energy is determined by its capacitance, which is typically measured in Farads. This capacitance is determined by the geometry of the plates, as well as the dielectric material between them. The B32912A3104K000 is a high capacitance film capacitor, with a capacitance of up to 330uF. It also has a low ESR (equivalent series resistance) across its entire range of capacitance, ensuring excellent performance in high frequency applications.

Conclusion

To summarise, the B32912A3104K000 is a special type of film capacitor designed to offer high capacitance, low losses and low ESR. Its broad application fields include power supplies, motor drives, AC motor drives, audio circuits, RF and filter networks and other high frequency applications. The capacitor is constructed by winding metalized polypropylene film around two small rods and works by creating and electric field which attracts charge when a voltage is applied. Having a capacitance range of up to 330uF and a low ESR, the B32912A3104K000 is an ideal solution for power supplies, batteries and many other applications.

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