EKZE350EMC471MJ20S

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors (AECs) are widely used in a broad range of electronic circuits because of their small size, high capacitance, and high voltage. They are widely used in many types of applications due to their unique electrical characteristics and outstanding reliability. In general, aluminum electrolytic capacitors form a very important part of the electronic components industry.

The EKZE350EMC471MJ20S is a high-temperature, long life aluminum electrolytic capacitor specifically designed for use in high-stress applications. This capacitor has an operating temperature range of -55°C to +105°C and is rated for up to 10000 hours of life. The EKZE350EMC471MJ20S has a tolerance of ±20%, a working voltage of 350V, capacitance of 470µF, and a ripple current rating of 100 mA.

Application Field

The EKZE350EMC471MJ20S is particularly well-suited for high frequency, high voltage, and current-sensitive applications such as in switch mode power supplies, switch mode rectifiers, instrumentation, automotive electronics, and industrial applications like welding machines. Additionally, they are often found in audio applications and are used in speakers and amplifiers.

The EKZE350EMC471MJ20S is a popular choice in many communication and medical device applications as well. The long life and high voltage ratings make them a reliable choice in these industries as well.

Working Principle

The basic working principle of an aluminum electrolytic capacitor is similar to that of any other capacitor. An electric current flows through a “dielectric”, a material with a higher resistance than an electrolyte, between two metal plates, one electrode and one anode. A voltage applied to the capacitor causes the electric charge to be stored on the dielectric in the form of an electric field.

The aluminum electrolytic capacitor is unique in that it uses an electrolyte consisting of an aluminum oxide film as the dielectric material. This aluminum oxide film is formed by oxidizing an aluminum foil. This film has a very high insulation resistance and a very low leakage current, which is important for use in high temperature and high voltage applications.

The electrolyte also determines the capacitance of an aluminum electrolytic capacitor by controlling the amount of charge stored in the electric field. The larger the electric field, the greater the charge stored, and the higher the capacitance. The electrolyte also dictates the life expectancy of the capacitor.

The EKZE350EMC471MJ20S uses an additional metallized layer on the aluminum foil to ensure maximum performance in harsh environments. This additional layer also allows for higher capacitance for a given size of capacitor.

Conclusion

The EKZE350EMC471MJ20S is a high-temperature, long-life aluminum electrolytic capacitor used in a variety of applications. Its unique electrical characteristics make it particularly suitable for high-frequency, high voltage, and current-sensitive applications. It has a wide operating temperature range and a long service life.

The working principle of aluminum electrolytic capacitors is based on an electric field formed between an electrode and an anode and stored in an aluminum oxide film. This film has a high insulation resistance and low leakage current, making it suitable for high temperature and voltage applications. An additional metallized layer can increase its capacitance and life expectancy.