The Amphenol FCI (Amphenol FCI) BERGSTIK II 93939-422HLF is a 22-position, dual-row 0.100-inch (2.54 mm) pitch board-to-board header in the BERGSTIK II family — a standard dual-beam square-pin header series widely used in board-to-board signal and low-power interconnect across industrial control, instrumentation, and consumer electronics. The 93939-422HLF is populated with all 22 positions loaded and carries tin plating on both the mating face (100 µin, 2.54 µm) and the solder-tail post, rated 5 A per contact at 110 V. Right-angle through-hole mounting places the contact plane parallel to the board surface; the 0.190-inch (4.83 mm) insulation height is the standoff above the board, and the 0.120-inch (3.05 mm) tail length seats into the plated through-hole for mechanical retention during wave or hand soldering. The push-pull fastening type relies on header body geometry alone — no jackscrew or locking latch — so it is suited for fixed-layout board pairs where vibration is controlled.
Tin-on-tin mating is standard for this series; the 100 µin (2.54 µm) mating-surface deposit provides adequate durability for the mating-cycle range typical of the BERGSTIK II family — the UL94 V-0 housing material sets the thermal ceiling for solder processing and long-term operating temperature.