ELXV500ELL121MJ16S

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are an important component of many electronic circuits due to their relatively large capacitance per unit volume. These capacitor components are composed of an aluminum foil and an electrolyte, separated by a film, with much higher capacitance than that of ceramic or tantalum capacitors. A wide range of aluminum electrolytic capacitors are available that include various characteristics such as capacitance, current and surge ratings, voltage ratings, temperature range, and size. Using different technologies, the lifetime of such components can be up to 50,000 hours for typical use.

ELXV500ELL121MJ16S application field and working principle

The ELXV500ELL121MJ16S is an Axial-lead aluminum electrolytic capacitor with a long operating life. It is typically used in signal filtering, audio switching, and power supply circuits. The ELXV500ELL121MJ16S features a rated voltage of 450V, and a capacitance of 1uF. Its maximum allowed ripple current is 20mA, operating temperature range is between -40°C and 105°C, and maximum capacitor ESR rating is 0.25Ω.

The ELXV500ELL121MJ16S axle lead aluminum electrolytic capacitor works based on the same principle used in all aluminum electrolytic capacitors. The capacitor component consists of two aluminum foils separated by an electrolyte, which is a chemical compound capable of conducting electrical current. When a voltage is applied across the terminals of the capacitor, an electric field is created, which results in the distribution of positive ions in one of the edges of the aluminum foil and negative ions in the other edge. This produces a static electric charge which is used to store electrical energy. Once the capacitor has been charged, it is then ready to be discharged when a component in the circuit requires the energy.

When selecting an aluminum electrolytic capacitor for a specific application, it is important to consider the capacitor’s maximum operating temperature, voltage rating, and current rating for the application. It is also important to select a capacitor with a maximum lifetime rating, to ensure long service life. Additionally, it is highly recommended to select a capacitor with a ripple current rating that is at least 30% greater than the expected peak current rating the capacitor will handle.