The Amphenol 87185-418HLF is the 18-position member of the BERGSTIK II board-to-board header series, a single-row unshrouded male pin header with push-pull through-hole solder termination rated 5 A per circuit at 110 V. Tin plating at 100.0 µin (2.54 µm) covers both the mating face and the solder tail, and the phosphor bronze contact delivers the square-pin geometry used across the BERGSTIK II line. The black PA nylon housing carries a UL94 V-0 flammability rating, placing this part squarely in signal-connect and lower-power board-to-board applications where the board stack is enclosed and the environment is controlled. All 18 positions are loaded; the base product number is 87185, with the HLF suffix denoting the RoHS/REACH-compliant plating variant.
Fastening and shrouding
The push-pull fastening and unshrouded profile mean the 87185-418HLF relies on contact friction and board retention for stability — no polarizing key, no locking latch, and no sealed interface. That makes it right for card cages and enclosed backplanes; it is not the choice for panels exposed to vibration, fluid splash, or any environment that demands an IP-rated seal. The 0.100-inch pitch and square contact geometry mate with the matching BERGSTIK II dual-beam receptacle, and the 0.100-inch (2.54 mm) insulation height sets the standoff at the board face.