Edge Card Connectors (HSEC8-DP & HSEC1)

Feb. 7, 2018
Samtec, Inc.'s card connectors are designed to increase cycle life and decrease crosstalk.

Samtec has expanded their line of edge card connectors with 0.8 mm and 1 mm pitch sockets designed for higher speed applications and optimal mating alignment. The 0.8 mm pitch socket (HSEC8-DP Series) is a differential pair version of Samtec’s popular Edge Rate 0.8 mm pitch sockets. Rated for speeds to 28 Gbps NRZ/56 Gbps PAM4, the socket features Edge Rate contacts designed to increase cycle life and decrease crosstalk. The double-row socket, with 8 to 56 total pairs and optional rugged weld tabs, mates with standard 2 mm (.06 in.) thick cards.


Optimized for performance to 28 Gbps, the 1 mm pitch edge card socket (HSEC1 Series) also features signal integrity optimized Edge Rate contacts with alignment pin and rugged weld tab options. The socket is available with up to 140 total positions and mates with standard 2 mm (.06 in.) thick cards. For specific applications, this edge card socket can help mitigate misalignment in the X and Y axes to ensure optimal contact/pad connection.


The smooth, broad, milled mating surface of the Edge Rate contacts minimizes the effects of broadside coupling, which decreases crosstalk for superior signal integrity performance. Increased impedance control is achieved by a straight, more consistent material cross-section. Robust when mating and unmating, this contact system also features a long contact wipe up to 1.5 mm, which improves the mating angle tolerance. In addition, Edge Rate contacts are suitable for a variety of high-speed protocols and standards.

The HSEC8 are available in vertical, pass-through, right-angle or edge mount orientations, and elevated stack heights to 30 mm. A micro 0.5 mm pitch socket (MEC5 Series) features a justification beam that enables the use of standard PCB tolerance and is PCIe Gen 4 compliant.

  • Up to 56 differential pairs
  • Performance to 20 GHz / 40 Gbps
  • Accepts .06 in. (2 mm) thick cards
  • Optional weld tab
  • 1 mm pitch, up to 140 positions