New Industry Products

Supercapacitors Provide Memory Backup in Circuits up to 6.3 WVdc

September 07, 2019 by Paul Shepard

The EDC and EDS series of coin cell style electric double-layer supercapacitors (EDLC) from Cornell Dubilier Electronics (CDE) can replace or extend battery life in on-board memory backup. With quick-response and recharge times, these devices offer higher power than batteries and greater energy than typical aluminum electrolytic capacitors without degradation over millions of charge-discharge cycles.

Both series offer values from 0.047 to 1.5 Farad capacity, at voltages up to 6.3 WVdc for the EDC series; and 5.5 WVdc for the EDS series. Operating temperature for the EDS series is from -25°C to +85°C, with the EDC series offering -25°C to +70°C.  Three case configurations are available for horizontal, vertical and radial-lead PCB mounting.

EDC and EDS series capacitors are ready to board mount in such applications as real-time clock (RTC) backup, power failure backup, battery assist and in market segments such as smart metering, HVAC controls, building automation, communication systems, appliances, instruments and other microprocessor-based devices.

Because of their high volumetric power density, they can be an effective way to reduce board size and weight.  Either series can be used as a drop-in replacement for similar value capacitors recently discontinued by other manufacturers.


  • Long life
  • High discharge current
  • 70°C (EDC) or 85°C (EDS) operating temperature