What this connector is
Where it fits in the board stack
At 50 positions in a dual-row layout the 93939-150HLF sits at the high-density end of the standard 2.54 mm pitch family. The 0.190 inch (4.83 mm) insulation height and 0.160 inch (4.06 mm) contact engagement length define the mated interface geometry — relevant when you are stacking two boards and the z-height budget is tight. The push-pull fastening type refers to the pin-shroud engagement style; the connector itself is unshrouded, so alignment in the stack relies on the mating receptacle's guidance features rather than a self-keying housing.
What the ratings mean for your BOM line
The 5 A per contact current rating applies at the mating interface with gold-plated contacts — the tin-plated post carries the same rating through the through-hole solder joint, so board trace width and via thermal relief at the solder tail are the design variables, not the contact itself. The 110 V ceiling is the relevant limit for any board-stack that routes power rails near the connector. The UL94 V-0 flammability rating on the housing material tells you the part is acceptable in enclosed equipment where flame containment is a compliance checkpoint.