Gecko - 1.25mm High Rel Connectors

Part Number Information
Part #: Price/Availability:
G125 Buy Now

Harwin's Gecko (G125 series) connectors provide a low profile, dual row cable-to-board and board-to-board interconnect solution, ideally suited for stacking and cable mating in areas where PCB real estate is at a premium.

With space and weight a consideration for many high-reliability applications, G125 connectors are designed to offer high performance in a miniature package. Pin spacing of 1.25mm and up to 50 contacts per connector, offers dense pin counts in a small package. This design means that G125 connectors achieve a 35% space saving over other high-performance connectors such as Micro-D. The connectors also accommodate 2A per contact.


Tested and proven to allow high performance in extreme conditions, the G125 family can operate within a wide temperature range (-65°C / +150°C) and under extreme vibration (Z axis 100g 6ms). This high performance is made possible by Harwin's four-finger patented (pending*) Copper Alloy Contact.

* Patent Pending - UK 1205109.0


  • Pin spacing of 1.25mm
  • Up to 50 contacts per connector
  • 35% space saving over other high-performance connectors
  • 2.8A per contact in isolation, 2A per contact simultaneously


  • Military/Aerospace
  • Commercial Avionics
  • UAVs
  • Oil & Gas
  • Robotics
  • Medical electronics