UPJ1E121MED1TA

Aluminum electrolytic capacitors are used for a variety of applications, including energy storage, energy conversion, filtering, signal coupling, and power supply decoupling. The UPJ1E121MED1TA aluminum electrolytic capacitor, specifically, is a popular choice due to its high performance specifications.

When assembled, the UPJ1E121MED1TA is a cylindrical, aluminum electrolytic capacitor with radial leads made out of electrolytic aluminum oxide. Its maximum capacitance ranges from 4700 μF to 220 μF and its working voltage ranges from 40V to 400V. Its leakage current, ESR, tolerance, and temperature characteristics are also impressive, with MAX Impedance ESR from 0.006Ω to 0.40Ω, leakage current which varies based on rated capacitance, tolerance at ±20%, and operating temperature from -40°C to +105°C. This capacitor is designed for the punishing power supply and energy-storage demands of board production.

Storing electricity in an aluminum electrolytic capacitor requires electrochemical processes that involve the formation of an electrolytic film on the surface of alternating metal and conductive plates. The plates are separated by an insulating medium, like paper or plastic, and typically each plate is a thin aluminum foil with a treated surface. During manufacturing, a dielectric layer of aluminum oxide is formed on the aluminum plates, which act as the electrolytic layer. The dielectric layer is created by passing an electric current through electrolyte solution until the aluminum plates are sufficiently oxidized.

The UPJ1E121MED1TA aluminum electrolytic capacitor has two terminals that interrupt the current flow during discharge. When a potential difference is applied to its terminals, an electric current is generated between the two charges and the capacitor will release its stored energy. When the current is deactivated, the capacitor discharges the energy, generating a strong voltage in the process.

When the UPJ1E121MED1TA is applied to an alternating current, a steady voltage is delivered to the capacitor. This process is known as “dielectric absorption.” As current is applied to capacitor\'s two plates, the aluminum oxide dielectric layer accumulates more and more electrons, resulting in a lower electric field and a higher capacitance. When the current is switched off, the electrons stored in the dielectric layer accumulate on one of the capacitor\'s plates, restoring the capacitor\'s original potential. This result is known as “reverse current absorption,” and it is one of the main principles behind the capacitor\'s reliable performance.

In conclusion, UPJ1E121MED1TA aluminum electrolytic capacitors are highly reliable and offer excellent performance in a wide range of applications. Their high capacitance and strong energy storage capabilities make them suitable for energy conversion and power supply decoupling applications. They are also ideal for filtering, signal coupling, and motor applications. But the most important thing to remember is that, when the UPJ1E121MED1TA is applied, the electric current and the capacitance of the capacitor must be regulated to reduce the risk of permanent damage to the device.