Electronics Weekly Electronics Design & Components Tech News
DGH types work up to 8.1V (-40 to +65°C) and measure between 25 x 8.5 x 16mm high for the 330mF version, to 39 x 13 x 33mm for the 5F. They will also work up to 85°C if max voltage is reduced to 6.9V. Estimated operating life is 1,500 hours at rated temperature and voltage.
The same size for the same value, DSF types work up to 9V at 65°C, falling to 7.5V at 85°C. The price paid for this extra voltage performance is a reduction in life to 1,000 hours.
“These supercapacitors are designed to withstand over 500,000 charge-discharge cycles,” according to the company. “A notable advantage of these supercapacitors is their internal cell balancing. Multiple devices can be banked for even higher capacitance or voltage.”
Picking the 8.1 1μF DGH105Q8R1 as an example, it can sustan 2.76A for 1s, 260mA continuously and a peak of 17.2A.
1kHz ESR is 245mΩ while with dc it is 470mΩ (20°C). Total energy stored is 9.1mWhr, and is leaks ~250μA.
Densities are 2.17Wh/kg, 2.02Wh/litre, 2.17kW/kg and 3.007kW/litre.
Potential applications include solar and wind energy harvesting, mechanical actuators, utility meters, IoT and increasing pulse current in battery packs.
Find the data sheets here:
