CAP-XX, a developer of supercapacitors that deliver peak power to support batteries, has launched its first compact cylindrical supercapacitors to provide high performance at low cost for less space-constrained devices. Combining its cylindrical supercapacitors with its existing thin prismatics that address ultra-space-constrained designs, CAP-XX now offers a wide range of small supercapacitors to power IoT industrial and consumer devices, from energy harvesting for wireless sensors to peak power support for wireless transmissions.
Single-cell (2.7 V) or dual-cell (5.4 V) cylindrical supercapacitors deliver high peak pulse power and low ESR at a competitive cost, ranging from less than US$0.50 for the smallest devices (one to five Farads) to $9 for the largest (400 Farads).
The smallest one Farad supercapacitor is 12 millimeters long and comes in two diameters: 6.3 millimeters (400 milliohms) and 8 millimeters (180 milliohms). The largest 400 Farad supercapacitor is 68 millimeters long and 35 millimeters in diameter (3 milliohms). All configurations are outlined in the CAP-XX data sheets: http://www.cap-xx.com\products.
The temperature range is -40°C to 65°C. Assembly is by soldering or welding (ultrasonic, laser or spot), via radial lead, solder pin or tab.
By comparison, CAP-XX’s existing prismatic supercapacitors range from $1.80 (1.0 millimeters thick, 180 milli-Farads, 40 milliohms) up to $3.50 (3.5 millimeters thick, 1.2 Farads, 20 milliohms) and are available in 2.5 V / 70°C to 5.5 V / 85°C configurations.
Supercapacitors can handle peak power events, supporting batteries and energy harvesters configured to provide low-power current at maximum efficiency. This architecture allows designers to use smaller, cheaper, low-power batteries and extend their run-time and cycle life, or use intermittent ambient energy sources such as solar photovoltaic. Supercapacitors also enable ultra-quick device charging and wireless power transfer, and provide the backup needed for graceful shutdown and “last gasp” transmissions in mission-critical applications.