35ST155MB33225 Capacitors

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Film Capacitors

Film capacitors are a type of passive electronic component used in a variety of electronic circuits. Generally, film capacitors are constructed using thin layers of polyester or polypropylene plastic film, wound with metal foil. The thin film layer acts as the dielectric, and the metal foil provides the electrical contact.

The 35ST155MB33225 series of film capacitors is a high capacitance, high voltage type with a very low ESR. These capacitors are designed for voltage stabilizing, filtering, and stabilizing pulse applications. They feature very low losses, fast response times, and low impedance. The capacitance range of these film capacitors is 150 μF - 2000 μF, with a maximum operating voltage of 355 VDC.

Working Principle

The basic principle of operation of a film capacitor is the same as any other type of capacitor. When a voltage is applied to a pair of electrodes separated by an insulating material, an electric field is formed. This field polarizes the insulating material, effectively creating a static charge. This static charge stores the electrical energy, effectively creating a capacitor.

In the case of the 35ST155MB33225 series of film capacitors, the dielectric material is a thin layer of polyester or polypropylene plastic film. The electrical contacts are two metal layers, usually aluminium or copper foil. This type of capacitor design offers several advantages. It offers higher voltage ratings than ceramic capacitors, lower losses than electrolytic capacitors, and a more stable capacitance over a wide temperature range.

Application Field

Due to their high voltage rating and small form factor, film capacitors are often used in a variety of high-voltage applications. They are often found in high-voltage power supplies, DC-DC converters, and duty cycle applications. They are ideal for a variety of motor-run and motor-driven applications, such as air conditioners, power tools, and appliances.

In audio applications, these capacitors are ideal for high voltage power filters and audio crossovers. They can also be used in the input circuits of guitar amplifiers and other musical instrument amplifiers. They are also often found in portable electronics, such as mobile phones and tablets.

Film capacitors are also used in military, aerospace, and medical applications. They are well suited for these applications due to their high voltage ratings, low losses, and stable capacitance over a wide temperature range.

Conclusion

The 35ST155MB33225 series of film capacitors are an ideal choice for a variety of high voltage applications. They offer high voltage and capacitance ratings, fast response times, and low losses. These capacitors are well suited for a variety of motor-run, motor-driven and audio applications, as well as military, aerospace, and medical applications.

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