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Cost-effective supercaps target portable consumer apps

Posted: 18 Jul 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Cellergy? supercapacitors?

Cost-effective supercapacitors

Citing a breakthrough in the cost of supercapacitorsunder a dollar in production quantities for its product as compared to double or triple that amount for competing unitsCellergy said its small-footprint series (as small as 17.5-by-17mm) as well as its low-profile (1.9mm) series are a viable design option in portable consumer devices.

The 7-40mF supercaps, designed to replace or support Li-ion cells in cameras, GPS systems, pagers and cell phones, are rated from 2.1- to 12V and tout an ESR as low as 150 milliohms. Leakage current is as low as 4A (and a maximum of 8A in the small-footprint series and 12A in the low-profile series).

These supercapacitors employ a patented electrochemical double layer screen printing technique and as such are easily sized (physically) to the design application; the standard footprint is 17-by- 17.5mm, with heights ranging from 2.4- to 5.3mm. The company's low profile (1.9mm) model is the same width (17.5mm), with a length of 28mm. The supercaps are manufactured to a tolerance of -20 to 80 percent. Maximum surge voltage capability is 25 percent. The devices are rated for operation over -40C to 70C. ESR increases to about 150 percent of nominal at 70C, and 200 percent of nominal at -20C. The devices are environmentally friendly, non-toxic, non-explosive and RoHS compliant.

- Vince Biancomano

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