Panasonic SD electric double layer capacitors (known as gold capacitors) can be compared to secondary batteries and offer the highest level of volumetric efficiency. No charging circuit is required and there is no limit to the number of charge and discharge cycles. SD supercapacitors utilise the release and absorption reaction of ions and do not rely on a chemical reaction to create current.

1000 h endurance at +70°C
Stacked coin type
General purpose
Tabbed lead terminals

Recommended for memory backup, suitable applications include video and audio devices, data terminals, printers, rice cookers and intelligent remote controls.