Electrical Capacitors

Written by Seth Cotterell
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Electrical capacitors are complex components that are integral to most computer systems and other electronic equipment. Capacitors must be functioning properly for electronic gear to work, and if the maximum voltage of a capacitor is exceeded, a breakdown will occur. Such breakdowns can be expensive and difficult to repair, so it is best to avoid a situation like this by knowing what kind of capacitor your equipment requires.

A Look at Various Electrical Capacitors

There are many different kinds of capacitors, each with its own specifications, abilities, and limitations. When you’re shopping for electrical capacitors online, it is critical to know what kind you are looking for and its uses. If you know the part number, you can avoid any confusion simply by entering it into an online distributor’s search function, which will then pull up that exact part, listing manufacturer and quantity in stock.

Electrolytic capacitors are very common. They are also referred to as electrochemical capacitors, and they are chiefly made of aluminum. The main concern with electrolytic capacitors is proper installation. Electrolytic capacitors are polarized, meaning they have a positive and a negative electrode, so it is critical that they be connected properly. Failure to do so can result in damage to the system and even possible injury as an improperly connected capacitor can and will explode.

Ceramic capacitors are another common type. Unlike electrolytic capacitors, ceramic capacitors are not polarized. Their signal distorting properties make them unusable in analog circuits. There are multilayer ceramic capacitors that are excellent for use in high frequency components.


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