APSA4R0ETD821MJB5S

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Aluminum-Polymer Capacitors are components of a newly discovered type of electrolytic capacitor that have revolutionized the electrical and electronics industry. Made of an anodized aluminum foil and an electrically insulating polymer layer, they are available in a wide variety of configurations and form factors, with original designs as small as 0.1 µF. An unique feature of Aluminum-Polymer Capacitors is that they offer far greater capacitance in a similar footprint than other electrolytic capacitor types, making them extremely beneficial in small form factor applications.

The APSA4R0ETD821MJB5S aluminum-polymer capacitor is the latest variant in this range of capacitors, and comes in a choice of seven sizes, from 3.2 x 4 mm up to 7.9 x 18 mm. They are designed to handle up to 85°C temperatures and feature a wide operating frequency range of up to 10 MHz. Additionally, APSA4R0ETD821MJB5S capacitors come with a long life expectancy of up to 5,000 hours at 85°C and feature a maximum ripple current up to 1600 mA.

It is highly versatile in its application field, fulfilling a wide range of needs, from bypass capacitors and power-supply decoupling to signal filtering and noise suppression. With their high capacitance ratings, they are also ideal for use in connector interfaces and microcontroller-based battery systems. Not only that, but they can also be used in power systems in cars and aircraft.

The working principle of the APSA4R0ETD821MJB5S aluminum-polymer capacitor is based on the Faraday principle of capacitance, which states that two facing conductive surfaces, separated by an insulator, form an effective electromagnetic field. The aluminum foil and the polymeric layer in APSA4R0ETD821MJB5S capacitors form this electromagnetic field, and by connecting the aluminum film to the positive lead of the capacitor, and the polymeric layer to the negative lead, charges can be stored and then discharged.

The phenomenon of electrochemical migration also plays a major role in increasing the capacitance of APSA4R0ETD821MJB5S aluminum-polymer capacitors. This is a process whereby electrons move from the anode to the cathode, which work to increase the capacitance of the capacitors. This is a result of the thin film layer formed on the capacitor dielectric by the electrochemical migration process.

The voltage rating of APSA4R0ETD821MJB5S aluminum-polymer capacitors is another important factor to consider when selecting capacitors for use in a particular application. The voltage ratings of these capacitors range from 4 VDC (volts direct current) to a maximum of 16 VDC. Additionally, APSA4R0ETD821MJB5S capacitors offer excellent surge protection, thanks to their high maximum ripple currents and high voltage ratings.

In terms of construction, APSA4R0ETD821MJB5S aluminum-polymer capacitors are extremely robust, with an industry-standard housing that offers excellent mechanical reliability. The metalized films are separated by anodized aluminum foil, which provides high corrosion resistance and increases the life expectancy of the capacitors. Additionally, the specialized epoxy coating provides enhanced durability in harsh conditions.

In summary, APSA4R0ETD821MJB5S aluminum-polymer capacitors are a highly reliable and efficient capacitor type, offering far more capacitance in a similar footprint than other capacitor types. Along with excellent voltage ratings, wide operating frequency range, high maximum ripple currents and their robust construction, these capacitors can be used for a variety of different applications.

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