UPJ1K121MHD6TN Capacitors

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are an important part of modern electrical and electronic equipment. The products are widely used in a variety of power supplies, including converters, inverters, power transformers, ballasts, power conditioners and regulators. These capacitors can also be used in RF and high-frequency circuits, and in communication systems such as cellular phones.

The UPJ1K121MHD6TN is a typical example of an aluminum electrolytic capacitor. This capacitor has a maximum capacitance of 12,500 µF, a voltage rating of 400 VDC, and an insulation resistance of 1,000 Ohms. It is constructed with a non-polarized aluminum electrolyte, a dielectric material, and an outer shell. Its operating temperature range is -40°C to +85°C, and its ripple current rating is 439mA.

Application Field and Working Principle

Aluminum electrolytic capacitors are used primarily as energy storage devices, and their use extends far beyond just power supplies. In audio, video, automotive, LED lighting, medical electronics, computers, and other applications, these capacitors are used to store energy for a variety of functions. This makes them extremely versatile and useful for a wide range of applications.

The working principle of aluminum electrolytic capacitors is based on the Faraday principle. An electric field is created by the difference in electrical potential between two plates of an electrolyte. This field causes a current to flow between the two electrodes and thus stores energy in the capacitor. The current is limited by an internal resistor, which helps to reduce voltage and current spikes.

Aluminum electrolytic capacitors have many advantages, including high capacitance, low cost, and relatively low ESR. However, they do have one important disadvantage – their inability to handle large amounts of ripple current. Therefore, they are generally best suited for applications where moderate levels of ripple current are required.

Aluminum electrolytic capacitors have become increasingly popular over the last few decades, thanks to their high performance and reliability. They are available in a wide variety of sizes and ratings, and they have become indispensable components in many of today’s most demanding applications.

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