The Amphenol FCI 75844-101-72LF is a 72-position dual-row male breakaway header from the BERGSTIK series, on a standard 0.100" (2.54mm) pitch. It's an unshrouded, through-hole solder header with gold GXT plating on the mating contacts — 30.0µin thick, which gives it a solid mating-cycle life for repeated board-to-board or cable connections. The square pins are phosphor bronze, rated 5 A per circuit at 110 V, and the black thermoplastic housing carries a UL94 V-0 flammability rating. Typical use is as a general-purpose board interconnect where you snap off the pin count you need from a breakaway strip.
What the key ratings mean for your board
The 0.100" pitch is the classic 2.54 mm grid — it matches legacy perfboard, standard IC footprints, and most 0.100"-spaced mating receptacles. 72 positions loaded all the way across two rows means the board footprint needs 36 holes per row at that pitch, with a 0.100" row-to-row spacing. The 5 A per-contact rating is typical for a signal-grade header; it's fine for logic-level power or I/O, but don't plan on running bus current through every pin simultaneously without derating above 25°C. The 30.0µin gold GXT on the mating side is the real story here — that's a heavy gold deposit that handles repeated insertion cycles without fretting corrosion, so it's a good fit for a connector that gets mated and unmated regularly in test fixtures or modular assemblies.