E81D451VSD122QB80T

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitors that, together with ceramic capacitors, film capacitors, and tantalum electrolytic capacitors, form the four major types of capacitors in the electronics industry. Aluminum electrolytic capacitors are most commonly characterized by their high electrical capacitance per unit volume, low ESL (Equivalent Series Resistance), high breakdown Voltage, good high-frequency characteristics, long life, and generally low costs.

E81D451VSD122QB80T application field and working principle

The E81D451VSD122QB80T aluminum electrolytic capacitor is an 8-lead ultra low leakage, ultra low current surge, MKT non-polarized capacitor. It is designed for use in high voltage, high frequency, high temperature and energy storage applications. The capacitor features a non-polarized construction with a maximum operating temperature of 125°C and a voltage range of 4V to 50V.

The working principle of an aluminum electrolytic capacitor is based on an electrolytic process. This process consists of a pair of aluminum plates which are separated by a paper or film dielectric, and then rolled into a cylinder shape. This cylinder is then submerged in an electrolytic solution where the aluminum layers of the dielectric are lined with an insulating oxide layer. The sandwiching of oxide and electrolyte between two electrodes forms the basic structure of the capacitor.

The capacitance of an aluminum electrolytic capacitor is based on two properties: a high dielectric constant and a very thin oxide layer. The oxide layer has an exceptionally high dielectric constant which enables it to store much more energy than a capacitor with a lower dielectric constant such as with ceramic capacitors. In addition, the extremely thin oxide layer results in an extremely low equivalent series resistance (ESR), which gives aluminum electrolytic capacitors their excellent capability of high-frequency applications.

The E81D451VSD122QB80T aluminum electrolytic capacitor is an 8-lead ultra low-leakage, ultra-low current surge, MKT non-polarized capacitor. It is suitable for a wide range of applications such as automotive, telecommunications, consumer electronics, high-power switching, and any other application that requires high capacitance in a small package.

The major field of application of aluminum electrolytic capacitors are heart-monitors, medical devices, photographic equipment, computers and other electronic devices used at high voltages and frequencies. The E81D451VSD122QB80T aluminum electrolytic capacitor is most suitable for high voltage, high frequency, high temperature and energy storage applications due to its low leakage, low current surge and non-polarized construction.

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