20-Position Dual-Row Board-to-Board Receptacle
The 66953-010LF: This is a 20-position, dual-row board-to-board receptacle from the Dubox™ and BergCon® PV™ series, built for stacking one PCB parallel to another. In a telecom or industrial card-edge application where the board is swapped quarterly, that gold thickness buys decades of reliable contact. Rated for 1250V, which is well above the typical 250-300V for a 2.54 mm pitch signal connector.
The tin-plated post (100 µinch) wets well with lead-free SAC solder. For a mezzanine stack, the total mated height depends on the header's own insulation height — check the mating header drawing to confirm clearance. In a high-vibration environment, consider a secondary board lock or a header with integral latches.
RoHS compliant per the entry.