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Gecko – 1.25mm High Rel Connectors

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.

* Patent Status:
Granted US 13/848813, Pending UK 1205109.0, Pending EP 13159969.8


  • 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

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