672D687H020ET5C

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one of the major product categories within the field of passive electronic components. Depending on the application, these capacitors are constructed with two aluminum foils with an electrolyte sandwiched in between. The 672D687H020ET5C capacitor is one of a series of such capacitors designed with high capacitance ratings for applications that demand high shock resistance and excellent long-term reliability.

Application Fields

The 672D687H020ET5C aluminum electrolytic capacitors are particularly well-suited for use in automotive, medical device, agricultural, industrial, and many consumer electronics applications. These capacitors are frequently used in power supplies, motor control, and power amplifier circuits, as well as in medical and commercial equipment. These capacitors provide high stability of capacitance even when used in a high-temperature environment or when exposed to vibration and shock.

Working Principle

An aluminum electrolytic capacitor is composed of a series of layers. The core consists of two aluminum foils rolled in a cylindrical shape with the electrolyte sandwiched in between. When a voltage is applied to the capacitor, the aluminum foil slowly begins to oxidize, forming a thicker oxide film on the anode foil and a thinner oxide film on the cathode foil. This process brings the anode and the cathode closer together, forming a space between the electrode layers in which the stored electric charge increases.

The capacitor is designed to function over a wide temperature range and provides extremely high capacitance in a relatively small form factor. The 672D687H020ET5C provides a maximum capacitance of 6.8µF at a maximum working voltage of 20Vdc. It also features a ripple current rating of 350mA and a surge current rating of 1000mA. It has a dissipation factor of 0.15 β @ 10 KHz and an ESR of 0.15Ω.

Aluminum electrolytic capacitors like the 672D687H020ET5C are widely used in a variety of applications due to their robust construction, ability to function over a wide temperature range, and their ability to provide a comparatively high capacitance in a relatively small form factor. These types of capacitors are also known for their high reliability and low cost, making them a cost-effective solution for many electronic applications.