Knowles Precision Devices

Knowles Corporation acquired Cornell Dubilier in 2023 to expand its offering of high-quality film, electrolytic, and mica capacitors. Like other supercapacitors offered by Knowles’ Cornell Dubilier brand, the new devices provide very fast power discharge that cannot be matched by conventional capacitors or batteries. is  That large capacity makes it possible to support brief power interruptions, supplement batteries, or even be used in place of batteries in many applications. These supercapacitors are ideal for applications including solar and wind energy harvesting, mechanical actuators, AGV (Automated Guided Vehicles), EV transportation power, smart utility meters, IoT, pulse battery pack alternatives, memory backup, battery/capacitor hybrids, UPS systems, emergency lighting, LED power, solar lighting or anywhere that significant energy storage is needed.

The new supercapacitors offer a notable jump in voltage rating over typical radial-mount supercapacitors, up to 9.0 WVDC. A key feature of the DGH and DSF Series additions is the unique three-cell radial-leaded package. Compared to single or dual-cell supercapacitors, the compact design 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.

Another notable advantage of these supercapacitors is their internal cell balancing. This feature ensures optimal performance and serves as a production time saver. DGH and DSF Series three-cell supercapacitors are also more cost-effective than other options currently available.

From a performance standpoint, both series offer high energy density and extremely low self-discharge rates, benefiting energy storage applications. Both series are also tolerant of wide-ranging operational environments, with operating temperature ranges from -40 °C to +65 °C for DGH 8.1V/DSF 9.0V and -40 °C to +85 °C for DGH 6.9V/DSF 7.5V. Low equivalent series resistance (ESR) minimizes energy loss for high efficiency. ESR varies by part but is 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.

All items are in distributor stock.

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Abracon announces the launch of an all-new line of 2.7V & 3.0V EDLC radial supercapacitors. These supercapacitors have the capacity to revolutionize energy supply and energy storage with their unmatched performance, reliability, and versatility.

The post 2.7 V and 3 V radial supercapacitors address fast charting energy storage applications appeared first on Power Electronic Tips.

DSM standard modules simplify the application of supercapacitors for large energy storage, providing designers with an easy and safe alternative to lithium-ion batteries. They can be rapidly implemented in power systems for energy harvesting, storage, and backup applications.

Each module features integrated-cell balancing, insulated construction, and cable/connector assemblies to facilitate immediate use. The DSM series reduces design time by eliminating the need for engineering resources to create an energy storage solution. A Molex Mini-Lock connector is utilized, making connectivity to the PCB a snap.

Modules are rated for temperatures up to 85 °C, and unlike lithium-ion batteries, there is no charge-discharge cycle degradation and no risk of dangerous thermal runaway. Life is rated for 500,000 cycles at 25 °C.

The operating temperature range is –40 °C to +65 °C for 9V, 18V, and 30V, with an extended temperature range of –40 °C to +85 °C at 7.5V, 15V, and 25V, respectively. The storage temperature range is –40 °C to +65 °C. DSM supercapacitor modules have a lifetime of 1,000 hours at rated voltage. They are compliant with RoHS, and the individual cells within the module meet UL 810A.

The wide operating temperature and voltage ratings expand the range of applications. DSM modules are a great fit for MRI systems, GPS, industrial backup, AGVs (automated guided vehicles), and more. Custom supercapacitor modules are also available upon request to address different form factors, mounting options, cell balancing, protection, connectivity, and more.

Type DSM Supercapacitor Modules are available from select CDE-authorized distributors.

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