The world’s thinnest supercapacitor

CAP-XX makes the thinnest supercapacitor in the world, delivering the highest power density.

FREE Supercap Application Whitepaper

Inrush Current-Limiters for Supercapacitors

This application white paper describes: a high-performance current limit circuit; a low-cost current limit design; a simple in-rush current limit circuit; and an integrated solution based on available current limit ICs to be used for a Supercapacitor.

Latest News


CAP-XX to attend and present at Sensors Expo 2019 (USA)

CAP-XX will be attending and presenting at the Sensors Expo 2019 which will be held in San Jose from June 25th – 27th. CAP-XX’s presentation is titled “Supercapacitors enable energy harvesters to power wireless sensors” and will be held on Tuesday June 25th. Please contact us at to set up a meeting or visit us at the Expo at booth 942 in the Energy Harvesting pavilion. The Sensor Expo website can be found at whilst a copy of the expo schedule which CAP-XX is participating can be found at

Custom Design Resources

Our skilled Australian engineers can develop supercapacitor solutions to perfectly integrate with your application.

Monitor with custom design


• Micro-controller circuit design
• Optimum supercapacitor sizing
• Accurate lifespan balancing
• Charging circuit design
• Cell balancing and current limiting
• Measure and test supercapacitors and batteries