50-Position Unshrouded Header for Board-to-Board or Cable
The 2-825440-5 is a 50-position, dual-row unshrouded header from the AMPMODU Mod II series, built for board-to-board or cable interconnect duty. The 0.100-inch pitch and 0.100-inch row spacing match the standard footprint for this class — the board layout is straightforward, and the receptacle side is widely available across the series. Gold mating finish at 3.90 microinches on the contact surface handles repeated mating cycles without corrosion buildup — a solid choice for field-serviceable assemblies where the connector sees multiple connects over its life. The tin-plated solder posts (98.4 microinches) wet well in wave solder.
Through-Hole Termination and Push-Pull Retention
Through-hole solder termination with a 0.126-inch post length gives a solid mechanical anchor on the board — no board lock needed for most static installations. The push-pull fastening type means no latch or screw; the retention relies on the friction of the mating receptacle contacts, so in high-vibration environments a shrouded header with a locking ramp is the safer call. The overall contact length of 0.500 inches (12.70 mm) and a mating length of 0.264 inches (6.70 mm) set the stack height budget for the mated pair — confirm the receptacle's insulation height clears your board-to-board spacing.