Corresponding to what it claims to be the industry's highest-level current rating of up to 5A for power supply applications, Panasonic has commercialised a 0.4mm pitch board-to-board/board-to-flexible printed circuit board (FPC) connector, the P4SP series. With the recent trend toward high functionality, compact and lightweight design, and increasing use of quick charging in both industrial and consumer equipment, high current rating is required for the connectors used for connecting the power supply board with the control board.