52-Position PCI Express Mini Card Edge Connector at 0.80mm Pitch
The TE Connectivity 1759547-1 is a 52-position female card-edge connector designed specifically for PCI Express Mini Card modules. The right-angle surface-mount orientation places the module parallel to the main board, keeping the assembly height low inside a compact enclosure.
Surface-Mount Footprint and Board Layout
The 0.80mm pitch is the tightest standard for PCIe Mini Card connectors — it drives the trace routing density on the motherboard and the keep-out zone around the connector. The dual-row readout means the 52 positions are arranged in two staggered rows of 26, matching the edge-finger pattern on the module. Gold flash contacts (phosphor bronze base) provide adequate corrosion protection for the typical mating cycle count in embedded applications, though the flash thickness is suited for occasional module swaps rather than frequent field reconnections. The right-angle SMT termination requires a reflow profile compatible with LCP — the housing material has a high melting point but absorbs moisture, so a bake before reflow is recommended if the tape-and-reel package has been exposed to ambient humidity.