What This Connector Is
The 93939-464HLF is a 64-position, dual-row, unshrouded male pin header from the Amphenol ICC (FCI) BERGSTIK® II series. It uses a 0.100" (2.54 mm) pitch on both the pin-to-pin and row spacing, which is the standard footprint for breadboard and legacy PCB layouts. The contacts are square male pins, tin-plated on both the mating surface and the solder tails, with a thick 100.0 µ" (2.54 µm) tin finish on the mating side — enough for moderate mating cycles in a clean, indoor environment. The housing is rated UL94 V-0.
Where It Fits
This is a board-to-board header — it mates with a matching unshrouded or low-profile receptacle that shares the same 0.100" pitch and dual-row layout. The right-angle orientation places the pins parallel to the PCB, so it suits board-edge applications where the mating connector enters from the side. The push-pull fastening means no locking latch; the connection relies on the friction of the pin-and-receptacle interface, so it works best in applications where the cable or board isn't subject to constant vibration or accidental snagging.
Key Ratings and What They Mean
Rated 5 A per contact, which is typical for a 0.100" pitch tin-plated header — the limiting factor is the temperature rise in the housing, not the contact itself. The 110 V voltage rating is conservative for signal-level use; you can run logic-level signals without concern. The 64 positions are all loaded, so the BOM position count is the full 64 circuits.