Gecko Connectors
1.25mm Pitch High-Reliability 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. Vibration and shock resistant, miniature yet powerful.
About Gecko
- 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)
Product Styles
- Gecko-SL (Gecko Screw-Lok) – The jackscrew connector range, built with easy and fast “Mate-before-Lok” screw fixings. Connectors 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.
- 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.
See also Gecko-MT – Developing the Gecko-SL range to include power contacts capable of 10A max. Available in 1 power / 8 signal / 1 power configuration, or 2 power / 8 signal / 2 power configuration. Also compatible with existing Metal Backshells.
Size/Weight Advantage
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.
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, GB2501063, GB2548777
Technical Details
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
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
Environment
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), 6 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
Downloads
Technical Documents
Catalog & Brochures
Test Reports
Browse the Range
Cable Assemblies
Ready-to-use cabled connectors, single or double ended, fully inspected and tested. Backpotted for added strain relief. Ideal for both prototyping…
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Cable Connector Parts
Cable housings and contacts, sold separately. Pre-wired contacts available for prototyping and full production. See Accessories and Tooling for cable…
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PCB Connectors
Board-mounted connectors, Surface Mount or Throughboard. Low profile, with a variety of screw-lok or latching options.
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