UHD0J222MPD

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, subsequently referred to as electrochemical capacitors, are a form of passive electrical component that holds electric energy stored and released in the form of mechanical displacements of an electrolyte, such as a liquid or a gel. An aluminum electrolytic capacitor consists of two aluminum foils with an electrolyte between them, a spacer, and a separator around the electrolyte. This structure enables capacitance values and energy density to be much higher than with other types of capacitors such as ceramic and plastic film. Additionally, the capability to handle high voltages makes aluminum electrolytic capacitors ideal for a wide range of applications including automotive electronics, power supplies, consumer electronics, motor drives, and audio power amplifiers.

UHD0J222MPD Application Field and Working Principle

The UHD0J222MPD is an aluminum electrolytic capacitor that is designed to operate in a temperature range of -40 to 85 degrees Celsius. It is a long-life product with a rated load life of 5,000 hours at 85 degrees Celsius. It has a capacitance of 220μF and a voltage rating of 20VDC. The UHD0J222MPD is a radial-type capacitor with a snap-in mount and has a cylindrical body and radial-leaded terminations. The UHD0J222MPD is ideal for applications such as power supplies, automotive electronics, and other low-voltage, high-pulse current circuits.

The working principle of the aluminum electrolytic capacitor is based on the behavior of an electrical double layer formed on the surface of the porous aluminum oxide film or electrolyte. The double layer is formed by the diffusion of ions that are caused by the applied voltage. This layer acts as a dielectric, with its capacitance depending on the applied voltage. Under acoustic frequencies, the increased movement of the ions and ions allow current to pass more easily through the aluminum oxide film. This increased current is called the “dielectric absorption” of the capacitor.

The UHD0J222MPD has a voltage rating of 20V and its insulation resistance is 1,000 MΩ or higher. Its capacitance tolerance is between -20% to +50%. Its ESR is 25mΩ max at 20°C, 120Hz and its rated ripple current is 100% of the rated impedence at 120 Hz. The operating life of the UHD0J222MPD is 5,000 hours at 85 degrees Celsius.

The aluminum electrolytic capacitor is very versatile and is widely used in a variety of electronic applications, such as automotive electronics, consumer electronics, LED display, motor drives, power supplies, industrial robots, telecom infrastructure, and audio power amplifiers. Its main advantages are its high capacitance, long lifetime, good temperature stability, and low ESR.

In conclusion, the UHD0J222MPD is an aluminum electrolytic capacitor that can be used in a wide range of applications due to its high capacitance, operating temperature range, long lifetime, and low ESR. Its versatile structure also makes it ideal for automotive, consumer, and audio power amplifier applications.