RS80E821MDN1

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Aluminum-polymer capacitors are a type of electrolytic capacitor that combines the best features of both electrolytic and non-electrolytic capacitors, offering higher temperature tolerance and smaller size than electrolytic capacitors, while still providing low ESR, longer life, and better electrical performance than non-electrolytic capacitors. The RS80E821MDN1 is a particularly popular aluminum-polymer capacitor, thanks to its excellent electro-mechanical characteristics and low ESR.

RS80E821MDN1 Features and Benefits

The RS80E821MDN1 stands out among aluminum-polymer capacitors thanks to its wide operating temperature range, from -40°C to +125°C. It is also a low-ESR device, exhibiting a maximum ESR of 15 mΩ at 25°C. Other features that make this capacitor ideal for many applications include its small size (3.3 x 7.3 mm), low-profile height (3.3 mm), halogen-free and lead-free construction, and a ripple current rating of 0.9 A.

RS80E821MDN1 Application Field and Working Principle

The RS80E821MDN1 is an ideal choice for a wide range of applications, thanks to its reliable performance and wide operating temperature range. Common applications for this device include power management and power SMPS converters, DC-DC converters, automotive electronics, motor controllers, and LED lighting.

The RS80E821MDN1 is a non-polar aluminum-polymer type capacitor, which means that it can be used in circuits where the polarities of the voltage and current do not have to be maintained for the capacitor to work effectively. Its design features a high-temperature polymeric film, which provides a high dielectric constant, along with two layers of aluminum foil. This combination creates a polymer-aluminum capacitor with much better performance and a longer service life than traditional aluminum electrolyte capacitors.

All aluminum-polymer capacitors, including the RS80E821MDN1, work by storing electrical energy in the form of an electrical field. As the voltage across the capacitor increases, an electric field forms between its layers, resulting in the accumulation of positive and negative charges on the device’s electrodes. This process is known as “charging” the capacitor, and it allows electrical energy to be stored temporarily in the device.

When the voltage across the capacitor is equalized, the electric field disappears and the charge that was stored in the capacitor is released into the circuit. This process is known as “discharging” the capacitor, and it is what allows the device to serve as a voltage regulator or decoupling component.

Conclusion

The RS80E821MDN1 is an ideal aluminum-polymer capacitor for a wide range of applications, thanks to its wide operating temperature range, small size, low-profile height, and low ESR. Its combination of design features ensures reliable performance and a long service life, making it an ideal choice for power management and other applications that require long-term reliability.

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