Shrouded Socket and Pin HeadersM50-300/310/311/315/320 Series socket headers mate with M50-350/360/390 Series unshrouded headers typical stock number 681-1184M52-500/505/510/515 Series socket headers mate with M52-xxxxxxP/S/V/Wxxxx Series unshrouded headers typical stock number 681-3001M50-430 Series socket headers mate with M50-490 Series pin headers1.27mm Harwin M50 Series