Gecko Horizontal 1.25mm Pitch Connector

Part Number Information
Part #: Price/Availability:
G125 Buy Now
G125-MH 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* Copper Alloy Contact.


  • New horizontal orientation, available with or without mechanical hold-down
  • Low above-PCB height - 5.6mm
  • Utilizes the same latching style and un-mating tools as the rest of the Gecko range
  • Through hole design for mechanical strength / integrity of solder joint
  • Available in tape and reel packaging
  • Suited to automated assembly process with option of SMT hold-down
  • Small footprint
  • Low height allows customers to bring PCBs closer together, assisting with product miniaturization
  • Increases design flexibility with additional options
  • Withstands extreme shock, vibration and temperature
  • Greater power to weight ratio than the competitors


  • Aerospace
  • Military
  • Motorsport
  • Medical
  • Robotics
  • Subsea
  • Oil & Gas
  • UAVs