The 188275-8 is an 8-position, 2-row receptacle from TE's Micro-MaTch series, rated for board-to-board or cable applications.
The SMD termination with board-to-board or cable style means the receptacle sits flat on the PCB, accepting a vertical or right-angle header from the same Micro-MaTch series. The 0.209-inch (5.30 mm) insulation height provides clearance for solder fillets and trace routing under the connector body.
