The Amphenol 79821-162HLF is a 62-position, dual-row unshrouded BergStik® II header on the standard 0.100" (2.54 mm) pitch. It is a through-hole, solder-terminated male pin header designed for board-to-board stacking applications where the mating half is a matching BergStik II receptacle or a standard 0.100" pitch female socket strip. The unshrouded design gives you access to the pins for probing or for routing traces between rows, and the push-pull fastening keeps insertion force predictable during assembly.
What the ratings mean for the fit
The 0.100" pitch and dual-row layout mean this header drops onto a standard 0.1-inch grid footprint — no special pad geometry needed. The 62 positions are all loaded, so the BOM circuit count matches the pin count directly. The 30.0 µin gold or GXT™ plating on the mating surface is the key spec for repeated mating cycles: at that thickness the contact survives hundreds of insertions without the fretting corrosion you'd see on tin-plated pins in a production-test or field-service environment. The 5 A per contact rating is typical for signal-level current on this pitch; the 110 V rating sets the working voltage limit for the interconnect. The 0.430" (10.92 mm) mating pin length gives enough reach to engage a standard receptacle's contact beam fully, while the 0.200" (5.08 mm) solder tail suits a typical 1.6 mm PCB thickness.