20-Position SMT Header at 1.27 mm Pitch
The 1.27 mm pitch and 1.27 mm row spacing set a compact board footprint — the 0.050" grid is half the density of a standard 0.100" header, which matters when routing traces between pads on a tight PCB.
Board-to-Board Fit and Mating Half
The header is unshrouded and mates with any Minitek127 receptacle or socket that shares the 1.27 mm pitch and 0.050" row spacing.
Surface Mount Assembly and Packaging
The header is surface mount, terminated by solder reflow. The 0.80 mm insulation height keeps the component profile low, which helps with clearance under neighbouring components on the board.
Comparing to a 10-Position Sibling
The difference is circuit count: 20 positions vs 10. The 10-position version uses tin on the post side (50 µin) instead of gold flash.