What the ratings mean for your selection
The 87052-144HLF: The unshrouded profile and push-pull fastening type are a matched pair — the header posts are exposed on all four sides and the push-pull latch locks the mated pair without jack-screws or a metal retaining clip. In high-vibration environments the unshrouded geometry means there is no locating shoulder to take cross-axis load, so confirm that the receptacle housing provides adequate side-entry retention or that board-level fixtures hold the stack. The UL94 V-0 rating covers the housing material under fault conditions — relevant for any enclosed equipment bay or production enclosure.
Where this connector is used
The BERGSTIK II 0.100" series is the standard board-to-board headers series across industrial automation, instrumentation, and communications equipment — the dual-row configuration is common on backplanes, mezzanine daughtercards, and daughter cards that need parallel stacking at a controlled board-separation distance. The 0.100" (2.54mm) pitch and through-hole solder termination are the canonical footprint for through-hole reflow or wave-solder board assembly, and the square post geometry is compatible with the matching BERGSTIK II receptacle housings and with many third-party IDC-style_headers in the same 0.100" pitch class. The 0.100" insulation height matches the row spacing, so the header sits flush with the board surface — check the keep-out around the header face for any component that must clear the board during mating.