SEK471M035ST

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Aluminum electrolytic capacitors are electronic components used in many electrical and electronics applications for their ability to store a charge or energy for short or long periods of time. They consist of a metal shell or can, an anode and a cathode that are separated by a dielectric, and two leads. The anode and cathode are most commonly made of aluminum, while the dielectric is a thin, but extremely strong insulating material.

The SEK471M035ST series aluminum electrolytic capacitors are leaded, chip type components with a polymer cathode, making them suitable for high temperature operation, while providing excellent electrical characteristics. Their voltage rating is increased to 170Vdc with use of the polyamid film, although the surge voltage could potentially reach 350V, depending on the application. The polyamide coating for the cathode helps to reduce leakage and improves the insulation resistance.

The SEK471M035ST series uses a single anode aluminum foil, with a large surface area that provides a high capacity for their relatively small size. With this capacitance, the series is suitable for applications that require high ripple current and long life. The design also uses PCB-mounted capacitors with a lower overall height compared to radial-leaded electrodes. The SEK471M035ST series has a rated temperature range of – 40°C to 105°C. It meets the RoHS compliance to minimize the impact on the environment.

The SEK471M035ST series aluminum electrolytic capacitors provide an excellent combination of performance and reliability in a wide range of applications. Some specific examples include power supplies, DC/DC converters, inverters, solar lighting solutions, LED lighting solutions and Luminaire, as well as industrial and medical applications. The series offers both low impedance and high ripple current characteristics, which are important features for these demanding applications.

The working principle of the SEK471M035ST series aluminum electrolytic capacitors is based on the basic principles of electrochemical energy storage. Electrons from the anode are attracted towards the cathode and blocked from passing by the dielectric material. The quantity of the charge that is stored is proportional to the surface area of the anode and cathode plates, the thickness of the dielectric material, and the applied voltage. An increase in the applied voltage will increase the capacitance, but may also reduce the life of the component.

Overall, the SEK471M035ST series aluminum electrolytic capacitors offer capabilities that make them a good fit for applications requiring high temperature operation, high capacitance, and low impedance. With their long life, low leakage current, low ESR, and high overload characteristics, the series is an excellent choice for a wide range of applications requiring reliable performance.

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