Eaton’s Supercapacitor Module Systems
Highly reliable and flexible energy storage solutions that provide fast responding very high peak power in a small footprint.


Supercapacitors and Ultracapacitors from leading industry manufacturers are available at RichardsonRFPD.

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Supercapacitors Features

March 16, 2023
Tthe 944L Series Capacitor ideal for inverter applications in electric vehicle power inverters, wind power inverters and motor drives.
RFPD Supercapacitor Virtual Tech Event
February 15, 2023
Richardson RFPD brought together technology leaders in the supercapacitor industry for the premier of Supercapacitor Technology Event on Jan 13 & 14, 2023
EATON XLM Supercapacitor Module
February 13, 2023
Eaton’s supercapacitor module systems are highly reliable and flexible energy storage solutions that provide fast responding peak power in a small footprint.
February 1, 2023
The newest addition to Maxwell Technologies’ K2 family of ultracapacitors is the 3-volt, 3000-farad cell.
December 13, 2022
The 54V, 165F ultracapacitor module contains 18 of the 3.0V, 3000F ultracapacitor cells in series
December 13, 2022
LICAP large ultracapacitor cells are rated at 3V and come in 3000F, or 1200F sizes.
November 28, 2022
As the electrification of automobiles continues to accelerate, the need for a safe, reliable, high-power energy storage technology is greater than ever…
August 22, 2022
The improved performance and practicality of electric vehicles (EVs) have merited them a permanent foothold in the overall automotive market.

Supercapacitors Featured Products


A good example of a cycling application is one used for energy recovery, such as regenerative braking. Here the advantages of hundreds of thousands of cycles can be seen. Also, the very low equivalent series resistance (ESR) of a supercapacitor allows for very high round trip (charge & discharge cycle) efficiency, in the range of 97%+ values. Compared to the cycle life of batteries in the thousands, and round trip efficiency in the mid-80% range, this is a significant advantage. Some applications combine batteries and supercapacitors to take advantage of the strengths of both. In these cases, the supercapacitors are used for regeneration, where the higher efficiency and large number of cycles can be utilized, and the batteries for long term energy needs, where their higher energy density is an advantage.

Power Backup

Supercapacitors are well suited for power backup applications, especially where battery replacement and maintenance cost is very high, or where very long life, and stable, predictable aging is needed. In power backup applications, energy requirements need to be low because of the low energy density. A good rule of thumb is for energy requirements of 60 seconds or less. An exception to this is where the backup power requirement is very low, such as in electronic applications. A good example of a power backup application is that used in Wind Turbines, for power in an emergency pitch. In this example, power is needed for about a half-minute when utility power is lost to the wind turbine, and the blades need to be turned to stop the rotor. Replacement cost is high, as the batteries are located up the tower in the hub. It is a two person task that takes a half-day to accomplish.

Pulse Power

Pulse power applications take advantage of the low equivalent series resistance of supercapacitors, that is, their ability to deliver large amounts of power very quickly. Pulse power applications can be mobile medical equipment, engine starting uses, voltage & frequency stabilization deployments, or systems to drive huge short term power needs from low or limited power sources. Pulse power applications can also be coupled with power backup to provide power quality and stability to a variety of industrial applications.

Energy & Power Design Support

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About our Team of Experts

Our team of global applications engineers are available to answer your questions to ensure your power conversion or energy storage system design meets your performance expectations. If you’re transitioning from silicon to gallium nitride (GaN) or silicon carbide (SiC), we’ll help identify the right switching device to achieve the power density and increased efficiency your application requires.