More Products of the Week: March 14, 2024

March 14, 2024

We get a multitude of interesting new products every day—here's a second selection for this week.

Three-cell supercapacitors by Knowles Precision Devices/CDE

Three-Cell Supercapacitors Operate at Up to 9 WVDC

Knowles Precision Devices now offers a selection of three-cell supercapacitors that offer greater energy potential and power output than single- or dual-cell devices. Operating at up to 9 WVDC, these electric double-layer capacitor (EDLC) modules are based on Knowles' Cornell Dubilier brand DGH and DSF Series supercapacitors.

These three-cell devices discharge power at rates unmatched by conventional capacitors or batteries. As a result, they can support brief power interruptions, supplement batteries, or even be used in place of batteries in many applications. They're suited for applications including solar- and wind-energy harvesting, mechanical actuators, automated guided vehicles (AGVs), EV transportation power, smart utility meters, IoT devices, pulse battery-pack alternatives, memory backup, battery/capacitor hybrids, UPS systems, emergency lighting, LED power, solar lighting, or anywhere that requires significant energy storage.

Their voltage ratings of up to 9 WVDC is a large increase compared with typical radial-mount supercapacitors. Compared to single- or dual-cell supercapacitors, the compact design of these devices saves space and allows for much higher operating voltages, making them ideal for a wider range of applications. Both series include capacitance values from 0.33 to 5 farads. Multiple devices can be banked for even higher capacitance or voltage.

Both series are also fit for operating temperature ranges from -40 to +65°C for DGH 8.1 V/DSF 9.0 V and -40 to +85°C for DGH 6.9 V/DSF 7.5 V. Their low equivalent series resistance (ESR) minimizes energy loss for high efficiency. ESR varies by part, but it's lower than most capacitors with similar storage capabilities. These supercapacitors are designed to withstand over 500,000 charge/discharge cycles, ensuring long-lasting performance without performance degradation. Operating life is expected to be up to 10 years.

David Maliniak | Executive Editor, Microwaves & RF

I am Executive Editor of Microwaves & RF, an all-digital publication that broadly covers all aspects of wireless communications. More particularly, we're keeping a close eye on technologies in the consumer-oriented 5G, 6G, IoT, M2M, and V2X markets, in which much of the wireless market's growth will occur in this decade and beyond. I work with a great team of editors to provide engineers, developers, and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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About me:

In his long career in the B2B electronics-industry media, David Maliniak has held editorial roles as both generalist and specialist. As Components Editor and, later, as Editor in Chief of EE Product News, David gained breadth of experience in covering the industry at large. In serving as EDA/Test and Measurement Technology Editor at Electronic Design, he developed deep insight into those complex areas of technology. Most recently, David worked in technical marketing communications at Teledyne LeCroy, leaving to rejoin the EOEM B2B publishing world in January 2020. David earned a B.A. in journalism at New York University.