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Gecko

1.25mm pitch High-Reliability Connectors

Vibration and shock resistant,
miniature yet powerful.

  • 2 Amps per contact
  • Up to 150°C operating temperature
  • Secure jackscrews or latching systems
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1.25mm pitch Hi-Rel Connectors

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

Features:

  • 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)

With space and weight a consideration for many high-reliability applications, Gecko delivers a pin spacing of 1.25mm, up to 50 contacts per connector. This design means that G125 connectors achieve up to 45% space saving, up to 75% weight saving over other high-performance connectors such as Micro-D.

16-contact Gecko Screw-Lok (green) overlaid with 15-contact Micro-D (red)

Overlay of Gecko v Micro-D

26-contact Gecko with Latches (green) overlaid with 25-contact Micro-D (red)

Gecko is a focus product for Harwin, and is undergoing an active development program. The connectors are designed with automated assembly systems in mind - all connectors can be purchased in Tape and Reel packaging.

* Patent Status:
Granted US9017089, Pending GB2501063, Pending EP2642604

Gecko Screw-Lok (Gecko SL)

The jackscrew connector range, built with easy and fast "Mate-before-Lok" screw fixings. Connector are fully mated before the captive screws need to be engaged. The range also features Metal Backshells, giving the option of shielded cable assemblies when used with external braiding.

PCB Mount Connectors Female
  • Vertical PC Tail/Throughboard
  • Vertical Surface Mount
Male
  • Vertical PC Tail/Throughboard
  • Vertical Surface Mount
Cable Mount Connectors Female
  • Cable Contacts
  • Cable Housings
  • Metal Backshell Kits
Male
  • Cable Contacts
  • Cable Housings
  • Metal Backshell Kits
Pre-Crimped Contacts
  • Female to free end
  • Male to free end
  • Female-to-Female
  • Male-to-Female
  • Male-to-Male

Gecko with Latches

The original Gecko range features latching mechanisms on the Male connectors, easy to release either by hand or with the Harwin-designed unlatching tools. This option gives the maximum amount of space saving footprint.

PCB Mount Connectors Female
  • Vertical PC Tail/Throughboard
  • Vertical Surface Mount
Male
  • Vertical PC Tail/Throughboard
  • Horizontal PC Tail/Throughboard
  • Vertical Surface Mount
Cable Mount Connectors Female
  • Cable Contacts
  • Cable Housings
Male
  • Cable Contacts
  • Cable Housings
Pre-Crimped Contacts
  • Female to free end
  • Male to free end
  • Female-to-Female
  • Male-to-Female
  • Male-to-Male
Complete Cable Assemblies
  • Female to free end
  • Male to free end
  • Female-to-Female
  • Male-to-Female
  • Male-to-Male

The following information is highlights from the Gecko performance characteristics. Download the complete Component Specification C125xx in PDF format for more detail.

 

Materials

Female Contacts High performance Beryllium Copper, Gold finish
Male Contacts Copper Alloy, Gold finish
Housing 30% Glass-Filled High Temperature Nylon (Polyamide) 4T, rated to UL94V-0
Screw-Loks Stainless Steel
Latches Copper Nickel Tin alloy, Tin over Nickel finish
Cables PTFE Equipment wire
Potting Compound Stycast 2651MM with Catalyst 9

 

Electrical

Current (at 25°C) 2.8A max per individual contact, 2A max all contacts electrically loaded
Working Voltage 450V DC or AC peak (250V DC or AC peak at 70,000ft/21km/44mbar)
Maximum Voltage 600V DC or AC peak (350V DC or AC peak at 70,000ft/21km/44mbar)
Contact Resistance 25mΩ max
Insulation Resistance 1GΩ min

 

Environmental

Operating Temperature -65°C to +150°C
Humidity Classification 56 days at 93% RH
Vibration (with latches) 10-2,000Hz, 1.5mm, 198m/s² (20G), 2 hours total
Shock (with latches) 981m/s² (100G) in Z Axis, 490m/s² (50G) in X & Y Axis
Outgassing 0.68% TML, 0.01% CVCM,
0.26 WVR (Water Vapour Recovered)

 

Mechanical

Durability (contacts) 1,000 mating cycles
Durability (latches) 100 mating cycles
Insertion force (per contact) 2.8N max
Withdrawal Force (per contact) 0.2N min
Latch retention force (per mating pair) 20N min

 

Wire specification

Recommended Wire types BS 3G 210 Type A, MIL-W-16878/6 type ET or NEMA HP3 type ET
Wire Sizes 26 to 32 AWG
Insulation Diameter Ø0.80mm max
Strip Length 1.50 - 1.75mm
Component Specification (including pin numbering system) C125XX - G125 Gecko Connectors
Catalog pages Gecko - Product Catalog
Test Report - General HT030xx - Gecko General Testing
Product Training Module
Outgassing figures Outgassing data list

 

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