Priced from £13.39 (UK Pounds or equivalent) the capacitor range has the highest energy density (13 Wsec/g) as well as including polarised storage capacitor with high capacitance (up to 90F).
Suitable as a storage device for energy harvesting, the capacitors are an alternative to rechargeable backup batteries as they can hold 70% of their charge for as long as a month.
They support voltages ranging from 1.4V (single cell) to 2.8V / 4.2V / 5.6V / 7.0V / 8.4V (multiple cells) and are available as stacked through-hole (STH, radial), surface mount flat (SMF) and lay-flat configurations (LPC) with wire and connectors.
Their low profile (2.5 mm) means they are a suitable size for portable and compact designs. Hybrid Storage 196 HVC ENYCAP Capacitors are part of Vishay’s Super 12 range.
Premier Farnell; http://uk.farnell.com/vishay-126hvc-capacitors