860020778021

Aluminum electrolytic capacitors (AECs) are widely used in a variety of applications, particularly in the electrical engineering sector. The 860020778021 series of AECs are specially designed for military, aviation and aerospace applications, characterised by high voltage, low-temperature and vibration resistance, and long life. This article will discuss the application field and working principle of 860020778021 AECs.

Aluminum electrolytic capacitors are composed of an anode and a cathode connected with an electrolyte. An aluminum foil, with etched anode pattern, is impregnated with an electrolyte and an anodic oxide layer is formed on it. Then, a separator of paper or film is added on the anode and a cathode rod is inserted into the electrolyte. The entire structure is then sealed and its positive and negative terminals are connected.

The 860020778021 aluminum electrolytic capacitors offer a number of advantages. They are characterized by a wide voltage range (60 to 300V), low equivalent series resistance (ESR) and excellent high frequency characteristics, which make them ideal for applications in motor control, power supplies, military, aerospace and other fields. These AECs also have high ripple currents up to 70A, making them suitable for applications with high switching frequency, such as power supplies for servers and computing equipment.

The 860020778021 aluminum electrolytic capacitors feature a special structure design, enabling them to operate over a wide temperature range from -55℃ to +105℃. Their titanium-aluminum (Ti-Al) out-gassing resistance ensures minimum leakage current and excellent stability under vibration and shock loads. Furthermore, their aluminum foils are treated with a special surface treatment process, resulting in a longer life (up to 10,000 hours).

The working principle of aluminum electrolytic capacitors is based on the electrical and chemical properties of the electrolyte contained within their structure. In this type of capacitor, the anode is a very thin aluminum foil, making it very susceptible to electric current. This current then reacts with the electrolyte, forming an oxide layer, which acts as a dielectric. The dielectric allows for the formation of a capacitor, with the anode and the electrolyte forming one plate and the cathode forming the other plate.

Due to the special design of the 860020778021 aluminum electrolytic capacitors, they are particularly suitable for military, aviation and aerospace applications where high voltages, low temperatures and vibration resistance are required. Furthermore, their unique structure allows for a long life of up to 10,000 hours, thus making them a reliable choice for applications such as motor control, power supplies and computing equipment.

In conclusion, the 860020778021 aluminum electrolytic capacitors are characterized by high voltage, low-temperature and vibration resistance, and long life. They are especially suitable for highly demanding applications, such as military, aviation and aerospace. These capacitors provide excellent ripple current up to 70A, and operate in a wide temperature range, making them an ideal choice for applications with high switching frequency.