The Samtec SSQ series PCB through hole board-to-board square post has square tailed socket strip with a 2.54mm pitch, a black, liquid crystal polymer insulator and phosphor bronze Tiger Buy contact with gold flash plating on the contact. It has 10 contactStandard and low insertion force contact with .025' (0.635 mm) square tail for self-nesting applicationVoltage rating 465 VAC / 655 VDC