Gecko Screw-Lok Connectors

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Secure fixings and metal backshells for Hi-Rel 1.25mm pitch connector family Gecko (G125 series) connectors are low-profile, dual row cable-to-board and board-to-board interconnects which save PCB real estate and weight in high reliability applications.


Gecko-SL contacts are rated to 2.8A individually, 2.0A for all contacts simultaneously. Able to withstand 1,000 mating cycles, they are ideal for long life or “fit and forget” applications, in operational temperatures of -65°C to +150°C. Gecko-SL connectors are rated to withstand 20g vibration and Z axis 100g 6m/s shock, with no discontinuity greater than 1µs, Z axis 100g. Gecko-SL connectors are manufactured from environmentally-friendly materials and are lead, phosphate and halogen free.

Shielding capabilities

Shielded options with machined aluminium backshells are available to deliver enhanced electrical continuity and effective EMI/RFI shielding in affected applications. The backshells are designed to accommodate flexible metal braiding and are strong and lightweight. Flexible cabling options include complete cable harnesses in customised lengths, loose mouldings and pre-crimped wires and loose mouldings and crimp contacts.


  • 2A per contact (all electrically loaded; 2.8A per individual contact)
  • 4-finger Patented contact design to maintain electrical contact through high vibration and shock
  • Beryllium Copper Contact for improved temperature range: -65°C to +150°C
  • 1,000 Mating cycles durability
  • Weight and Space saving over Micro-D connector products
  • Future-proofed Materials - halogen-free, PFOS-free, SVHC-free and RoHS compliant
  • Low outgassing properties - 0.68% TML, 0.01% CVCM, 0.26 WVR (Water Vapour Recovered)
  • Available in female and male vertical through-hole and surface-mount variants for the PCB, and cable connector housings and contacts
  • Strain relief is ensured through board mount fixings
  • Robust stainless steel fixing hardware provides corrosion resistance against salt spray and humidity


  • Motor controls and sensor for Robotics (humanoid and industrial robotics)
  • Flight Safety systems (Commercial Aerospace)
  • Small satellites (Cube and Nano-Sats)
  • Navigation and control systems (Unmanned vehicles / Uavs)
  • Actuators and control systems (Commercial Aerospace)
  • Energy recovery systems and battery management (Auto-sport & Electric vehicles)
  • Sensor systems (Multiple applications)