BERGSTIK II 34-Position Unshrouded Header
The Amphenol FCI 79821-134HLF is a 34-circuit, dual-row unshrouded header from the BERGSTIK II series, built on the standard 0.100 inch (2.54 mm) pitch grid. It carries 5 A per contact with a 110 V rating, and the mating surface is plated with 30.0 µ" (0.76 µm) gold over phosphor bronze — a plating grade that handles repeated mating cycles without the contact fretting you see on tin-plated parts in moderate-vibration environments. The through-hole solder tails are 0.200 inch (5.08 mm) long, and the overall contact length of 0.730 inch (18.54 mm) gives enough stand-off for wire-wrapping or a second board layer if needed.
The 0.100 inch pitch is the breadboard-compatible standard — this header drops onto any 0.100-inch grid perfboard or mates with standard 0.100-inch dual-row receptacles without a layout surprise.
The through-hole solder termination is straightforward for wave-solder or hand-solder assembly. All 34 positions are loaded, so there are no unpopulated spots to catch out a BOM check.