EEU-FR1A821B Capacitors

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Aluminum electrolytic capacitors, more commonly known as aluminium electrolytic capacitors, are widely used in many consumer electronics due to their ability to store and release energy quite effectively. These capacitors are integrated within circuit boards, capacitors and actuators within these products. The EEU-FR1A821B aluminium electrolytic capacitor is ideal for switching power supplies, it has an application field mainly within those types of electronics due to its long life cycle, high ripple current and large capacitance.

The EEU-FR1A821B aluminium electrolytic capacitor is an “oil-filled, self-healing, non-polarized” capacitor, which features a high dielectric strength and exceptionally low electrical leakage. This capacitor also features a very low ESR, or equivalent series resistance, which increases the efficiency of the system. This capacitor also has a very low dissipation, which is important for both electrical and heat related applications.

Internally the EEU-FR1A821B aluminium electrolytic capacitor is made up of an anode and a cathode, surrounded by an electrolyte and an aluminum oxide layer. The electrolyte within the capacitor acts as an insulating layer, allowing current to flow only when voltage is applied to the anode and cathode. This anode-cathode voltage is called a “reverse polarization & reverse leakage current”. The electrolyte also acts as a buffer, increasing the life expectancy of the capacitor itself by reducing lost energy.

The electrolyte and aluminum oxide layer of the capacitor together with the temperature and the capacitor’s ESR, or equivalent series resistance, determine the capacitance value and the maximum working voltage of the aluminium electrolytic capacitor. The temperature and ESR determine the maximum working voltage, while the value of the capacitance is determined by the thickness of the aluminum oxide layer, which also affects its life expectancy.

The EEU-FR1A821B aluminium electrolytic capacitor also features an unprecedented ability to “self-heal”, which means that if an area of the capacitor experiences an abrupt surge of current, it will automatically try and heal itself and keep functioning. This is the principle that allows it to handle large amounts of ripple current, which is necessary for applications where the capacitor must store and release energy very quickly.

The EEU-FR1A821B aluminium electrolytic capacitor is used in many different applications, especially within the field of switching power supplies, due to its ability to provide reliable and consistent results. It is also highly resilient to harsh conditions, meaning that the capacitor is capable of withstanding temperature extremes and resist impacts, making it ideal for many applications.

The capacitor works by creating an electrical field that can store charge. When voltage is applied across its terminals, electrons flow through the capacitor and build up on the internal electrodes. This creates an electrical field that can be used to store energy. The stored energy can then be released as an electrical current when needed.

The EEU-FR1A821B aluminium electrolytic capacitor is a versatile component, with an impressive ability to store and discharge energy reliably and consistently. Its applications within switching power supplies are just one of the many ways that this capacitor can be used. The low ESR and the self-healing ability make it the ideal choice for use within many consumer electronics, due to its ability to withstand harsh conditions and resist impact.

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