EDLC capacitors replace or extend battery life

6th November 2019

Mick Elliott

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Datasheet

Release of the new EDC and EDS series of Coin Cell style EDLC capacitors from Cornell Dubilier (CDE) has been announced by New Yorker Electronics. 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.

These new supercapacitors can replace or extend battery life in on-board memory backup. They are electric double-layer supercapacitors that provide high capacitance values in a thru-hole stacked coin type package.

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.

The CDE EDC Series is rated at voltages up to 6.3WVDC with an operating temperature of -25°C to +70°C. The EDS series is rated at 5.5WVDC with an operating temperature of -25°C to +85°C. Both offer values from 0.047F to 1.5F capacity.

Primarily designed for integrated circuit voltage backup, the capacitors can also be used to deliver the initial power from batteries.