0.64mm pitch, 30 positions — the tight-pitch mezzanine receptacle for board-stacking designs
Two rows of center strip contacts, gold-plated at 10.0µin, handle moderate mating-cycle duty typical of a one-time assembly or occasional rework in production; the gold grade is not spec'd for high-cycle field-service connectors but is standard for internal mezzanine links in portable electronics, telecom line cards, or rack-mounted modules.
Six stacking heights from one receptacle
What sets this receptacle apart from a fixed-height mezzanine part is the mated stacking height range: 6mm, 7mm, 8mm, 9mm, or 10mm, depending on which mating header you pair it with. That means the same 0528850374 on the board can serve multiple board-spacing designs without requalifying a new connector — useful when a single PCB is used across product variants with different enclosure depths.
Solder retention and board guide — built for reflow assembly
The board guide takes the alignment load off the signal pins during assembly — without it, the fine-pitch contacts could bend or skive on the header's lead-in. Tape & Reel packaging (cut tape available) feeds directly into a pick-and-place line; no hand-loading step needed.