The TE Connectivity 2-1658015-2 is an 80-position plug from the MICTOR series, built as a surface-mount outer-shroud contact connector. The 0.031" (0.80mm) pitch and dual-row layout target high-density board-to-board mezzanine stacking — the 11mm mated stack height paired with the 0.404" (10.27mm) height above board sets the gap between parallel PCBs. Gold contacts at 10.0µin (0.25µm) thickness on the mating interface support repeated connection cycles without fretting corrosion — a requirement for mezzanine cards that see field-service swaps or rework. The outer shroud contacts shield the signal pins and provide a low-inductance return path, while the integrated board guide aids blind-mate alignment during board stacking.
Board Layout: Pitch, Stack Height, and Routing
At 0.80mm pitch, the footprint demands careful trace-and-space rules — expect 4-mil (0.10mm) lines and spaces for a single microstrip layer between pads, or tighter if routing on inner layers. The 11mm mated stack height gives enough clearance for mid-board components on the underside of the top card, but the 10.27mm height above board means the plug body extends above the PCB surface by that much — verify keep-out zones on the bottom card. The ground bus plane on the plug provides a continuous return reference; stitch it to the PCB ground plane with vias near each ground contact to minimise loop inductance at the mating interface.
Mating and Termination: What Connects Here
This is the plug side — it mates with the MICTOR receptacle (the matching half, typically a TE part with the same 0.80mm pitch and 80 positions). Termination is surface-mount only; the SMT tails reflow onto the board pads. No through-hole or press-fit option on this variant. The board guide takes the shear load during blind mating, protecting the signal contacts from stubbing.