The board-to-board connectors from Würth Elektronik eiSos for SMT assembly are extremely popular. The manufacturer of electronic and electromechanical components presents its latest development in this product group: WA-SMST with a through-hole of 4.5 mm diameter, and WA-SMSI with an M4 internal thread. Both versions are available for spacings of 1 to 10 mm in…