PanelMate™ Wire to Board Receptacle Housing - 51146 Series A range of Series 51146 PanelMate™ wire to board receptacle housings with an ultra low profile of 1.80mm. These wire to board Series 51146 PanelMate receptacle housings have a polarized design and a housing lance and friction lock ensure secure terminal retention and mating. The Series 51146 PanelMate wire to board housings mate with series 53780 headers, see stock number 720-6438 typically, and are for use with the 50641 series terminals, see stock number 670-6436 typically.