UKL1J221KHD

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Aluminum electrolytic capacitors are polarized capacitors with aluminum oxide film on the electrodes, used for large capacitance at a high voltage and in high frequencies. A great number of electrical and electronic applications as power supplies, DC-DC converters, signal conditioning and signal processing circuits make accurate and reliable use of aluminum electrolytic capacitors. The UKL1J221KHD type capacitor is a radial leaded aluminum electrolytic capacitor. In this kind, the liquid electrolyte is impregnated into the paper foil of the capacitor and acts as a negative electrode. It shows excellent high frequency characteristics, high ripple current and high insulation resistance.

Aluminum electrolytic capacitors can be mainly applied in signal conditioning, switching power conversion, filtering device, energy storage, timing and tuning circuit, oscillator and other applications, such as relay and motor protection, driving protection, voltage scaling, zero crossing detection, power management, EMC interference reduction and voltage surge protection. They also have various uses on modern-day digital products, such as TVs, PCs, CD players, and so on.

The working principle of the UKL1J221KHD series is a combination of electrochemistry and electrically conductive electrolytes (rolled up sheets of aluminum oxide-impregnated paper). This results in a highly reliable capacitor, designed for a wide range of temperatures and with very tight electrical parameters. The rolled up sheets of aluminum oxide-impregnated paper act as dielectric material that allow electrical current to flow through them. The electrolyte is a liquid compound which acts both as a chemical connector between the aluminum oxide sheets and the capacitor terminals and as a conductor to charge the capacitor electrode and affect the capacitor\'s dielectric behavior.

These components have a higher energy density and a higher capicity than most other capacitors, improving the capacitors performance and reliability. The liquid electrolyte acts to suppress surface barriers that would affect the capacitance, resulting in reduced ESR and dissipation factors and a higher ripple current capability. The high component temperature operation, without reverse voltage, prevents voltage disconnection and allows work to be done at higher temperatures, usually up to 125°C.

The aluminum electrolytic capacitors are used in various industries and applications, such as in aerospace and aviation, automotive, instrumentation, medical, power electronics and other high frequency applications. They are also used in switch-mode power supplies, energy storage and detonation, voltage selection and zero crossing detection, pulse and line regulation and interference reduction. The UKL1J221KHD is an excellent component that supported all types of high frequency applications and is commonly used to replace standard capacitors.

The aluminum electrolytic capacitor is a unique component that offers a wide range of benefits in high frequency and other applications. They are equipped with a wide variety of features, such as high ripple current capacity, ideal voltage tolerance, high insulation resistance, high temperature operation, lower losses, and low ESR and DC bias stability. All these features make them a great choice for many applications, especially if a higher capacitance is desired. The UKL1J221KHD aluminum electrolytic capacitor is the perfect choice for applications requiring high performance in both power and high frequency applications.

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