MAL202117681E3

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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is a capacitive component that typically consists of two aluminum foils, which are usually wound together into a cylindrical shape, and a paper separator. The aluminum foils are coated in an electrolyte solution, making them electrically conductive. Aluminum electrolytic capacitors are distinguished from other types of capacitors by their much larger capacitance and much higher tolerance to impedance changes caused by temperature or circuit impedance changes. This high capacitance makes them suitable for high voltage applications, such as those found in automotive, renewable energy, and high voltage power systems.

MAL202117681E3 Application Field and Working Principle

The MAL202117681E3 is a particular model of an aluminum electrolytic capacitor. It is a radial leaded device that has an 85°C operating temperature, with a rated voltage of 450V. This capacitor is primarily used in AC and DC electronics, lighting, secured power-supply, welding equipment, medical instruments, and similar applications. This particular model can be used where large capacitance is required, with a range of 72 μF to 330 μF, and can withstand a variety of surge currents up to 1000uA.

The MAL202117681E3 works on the principle of an electrolytic capacitor. When a voltage is applied across the capacitor, an electric field is generated in the thin layer of electrolyte between the two aluminum foils. At the same time, the liquid electrolyte reacts with the aluminum foils and forms a thin dielectric layer on them. This process creates an electric field that opposes the applied voltage, allowing for charge storage in the capacitor. The combination of this opposition and the large capacitance of the device allows them to store a large amount of energy in a very small volume.

The MAL202117681E3 has a very high capacitance to voltage (CV) ratio, along with a high power factor and a high temperature operating range. It is also highly tolerant to temperature and circuit impedance changes, making it very reliable in almost any operating environment. The device also has excellent life expectancy, with an expected life of up to 5000 hours.

The MAL202117681E3 is an excellent choice for many applications where large capacitance, reliability and high capacitor voltage rating are required. Its high capacitance to voltage ratio makes it ideal for AC and DC power supplies, motor drives, welding equipment, medical instruments and other applications where energy storage is needed. The device\'s high tolerance for temperature and circuit impedance changes make it a reliable solution for high voltage power systems, renewable energy and automotive applications.

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