SPA101M04B

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Aluminum - Polymer Capacitors

An aluminum - polymer capacitor, otherwise known as an Al-Poly, is a type of capacitor that combines features and advantages of both aluminum electrolytic and polymer capacitors. They are made from a combination of aluminum alloy and organic component, similar to the structure of a typical aluminum electrolytic, with the ultimate goal of improving reliability and reducing size and ESR.

Perhaps the most notable feature of aluminum - polymer capacitors is their ability to withstand the pressure of high frequency currents. Unlike traditional aluminum electrolytic capacitors, Al-pols have solid electrolyte, which allows them to resist high frequency ringing, and with their lower ESR (Equivalent Series Resistance) than aluminum electrolytic, they can support much higher capacitance in the same footprint.

SPA101M04B Application Field

The SPA101M04B is a multilayer aluminum - polymer capacitor manufactured by Murata. It is designed to be used in a variety of electronic devices, including cellular phones, laptops, and other consumer and industrial electronics. The SPA101M04B has a maximum capacitance of 2,000 µF and an ESR at 1 kHz of 4 ohms. It is available in various profiles, including surface mount, lead-free reflow, and tape and reel. Its low ESR makes it suitable for high frequency applications such as PFC (Power Factor Correction), and its large capacitance allows it to be used as energy storage in medium power supplies.

SPA101M04B Working Principle

The SPA101M04B aluminum - polymer capacitor is made with an anode containing a film of aluminum and a cathode layer of organic and inorganic materials. These two layers are then separated by a double sided electrodes. When a potential difference is applied across the two electrodes, ions are exchanged between the two and an electric current is created. This current then makes up the capacitive reactance of the capacitor. The capacitance is proportional to the thickness of the electrodes as well as the area of the anode and the permittivity of the dielectric material used.

The SPA101M04B also utilises proprietary technology to minimise the effects of leakage current and increase the Life Rating, allowing the capacitor to remain stable under high temperature stress and voltage variations. The capacitor offers a very stable electrical characteristic across temperature range, making it suitable for a wide range of applications.

Conclusion

Aluminum - polymer capacitors, such as the SPA101M04B, offer many advantages over traditional aluminum electrolytic capacitors. They have low ESR and can withstand high frequencies, making them suitable for a variety of applications in consumer and industrial electronics. Their large capacitance allows them to be used as energy storage in medium power supplies, while their Life Rating ensures they remain stable despite temperature and voltage variations. The SPA101M04B is just one example of the many aluminum - polymer capacitors available, and is an excellent choice for many applications.

The specific data is subject to PDF, and the above content is for reference