EKXJ451ELL120MJ20S

Aluminum electrolytic capacitors, typically referred to simply as electrolytic capacitors, are fixed capacitors with a very large capacitance and remarkable size-to-capacitance ratio. These capacitors are composed of an aluminum foil section as the electrode, saturated with an electrolyte and covered by a paper and plastic film. They help increase the smoothness of power supply, filter noises, reduce high-frequency noise interference, expand pulse rectification range and improve the circuit stability. The applications of EKXJ451ELL120MJ20S aluminum electrolytic capacitors are widely used in television sets, DVD players, monitors, etc.

As its name suggests, EKXJ451ELL120MJ20S aluminum electrolytic capacitors are the capacitors with aluminum and electrolyte as the electrodes. Its working principle is based on the Faraday’s Law of electrical circuit theory. This law states that a voltage is induced in a circuit which includes an inductor based on the amount of charge passing through the circuit. The capacitance of the EKXJ451ELL120MJ20S aluminum electrolytic capacitors comes from the potential difference created between two metal plates floating in a pure electrolyte. As current flows through the electrolyte, it creates a sacrificial oxide layer on the aluminum plates. As this oxide layer accumulates, it creates an electrical barrier between the two plates, creating a potential difference. This is why the oxide layer needs to be continually replaced by new electrolyte.

The capacitance of EKXJ451ELL120MJ20S aluminum electrolytic capacitors can be increased by increasing the area of the plates and decreasing the distances between them. To reduce the series resistance and impedance, the main factor is assuming a low value of ESR (Equivalent Series Resistance). The temperature range for aluminum electrolytic capacitors is usually quite limited. It is important to ensure that the capacitor’s temperature is kept within this range to minimize the risk of damage.

EKXJ451ELL120MJ20S aluminum electrolytic capacitors are widely used in power supplies, such as switching power supply, laptops, gaming consoles, amplifiers, etc. It is also commonly used in signal filtering, output filtering, and noise reducing. Due to their large capacity and compact size, they are commonly used as buffering and voltage stabilizing for huge current loads. Because of their unique electrolytic charging process, they are commonly used in high-frequency applications.

The EKXJ451ELL120MJ20S aluminum electrolytic capacitors feature much higher voltage rating and are developed to handle high voltage pulses in situations such as load dump conditions. With high capacitance and voltage, they are able to support heavy load demand in automotive batteries backup systems, providing an emergency power to restart the engine. They also have low ESR (Equivalent Series Resistance) and high efficiency, an ideal choice for high current integrated circuits and digital amplifiers.