Supercapacitor engineering resource

Choose the right supercapacitor for your design — with the numbers to back it.

Selection guides, calculators and application notes for engineers and industrial buyers, plus direct support from sizing to supply.

Selection guides

Size capacitance, voltage and ESR step by step.

Engineering calculators

Energy, backup hold-up and series-string tools.

Custom solutions

Modules, balancing and assemblies for OEM projects.

Sourcing support

Cross-references, alternatives and volume supply.

Product families

Supercapacitor types

From coin cells for RTC backup to high-voltage modules for grid and traction.

EDLC Supercapacitors

Electric double-layer capacitors store charge electrostatically at the electrode