Abstract: A generally prismatic package (1) for an electrical device in the form of supercapacitive element (2) having an electrical property with a predetermined value. Package (1) includes an insulating element in the form of a generally rectangular-prismatic liquid crystal polymer (LCP) housing (3) for supporting element (2). More specifically, element (2) is mounted to the insulating element such that, following surface mounting of element (2) to a substrate, in the form of a printed circuit board (not shown), the electrical property remains within a predetermined tolerance.

Abstract: A supercapacitor (1) includes two like stacked supercapacitive cells (2, 3) that are connected to each other in series. A two-piece generally prismatic sealed package (4) defines an interior (5) to contain cells (2, 3). Package (4) includes a substantially planar access sidewall (6) having two spaced apart apertures (7, 8) extending from interior (5) to an exterior of the package. Sidewall (6) contains a liquid crystal polymer (LCP). A lead assembly, in the form of two spaced apart metal leads (9, 10) are electrically connected to cells (2, 3) respectively, and extend through respective apertures (7, 8) to allow external electrical connection to the cells.