The 3-644456-6 is a 6-position 1-row Wire-to-board Narrow Flat Header with pin type tin-plated copper alloy straight contacts, UL94V-0-rated polyester housing and nickel-plated underplate. The MTA-100 series through-hole vertical breakaway header is suitable for use with 0.100-inch (2.54mm) centerline MTA-100 IDC connectors and printed circuit board.