Gecko High-Reliability Connectors

Harwin offers their 1.25 mm pitch, high-reliability/high-performance connector system

Image of Harwin's Gecko High-Reliability Connectors Harwin's Gecko (G125) series is a 1.25 mm pitch, high-reliability/high-performance connector system that is suited for use in environments with high vibration, shock, and extreme temperatures.

With space and weight a consideration for many high-reliability applications, G125 connectors are designed to offer high performance in a miniature package. This design means that G125 connectors achieve a 35% space saving over other high-performance connectors such as Micro-D. Through-hole and SMT options available. Available in board-to-board, wire-to-board and wire-to-wire configurations.


  • 2.8 A per contact in isolation and 2.0 A all contacts simultaneously
  • Four-finger beryllium copper contact design for high reliability
  • Durability: 1,000 operations
  • Operational temperature -65°C/+150°C
  • Shock severity Z axis 100 g 6 ms
  • Moldings: Glass-filled thermoplastic UL94V-0 (Halogen and Red Phosphorus-free)
  • 3 polarizing points to prevent mis-mating
  • Potting wall feature
  • Easy-to-release latches require no tooling
  • No. 1 position identified on molding

Gecko (G125) Connectors

ImageManufacturer Part NumberDescriptionAvailable Quantity
CONN SOCKET 26AWG CRIMP GOLDG125-0010005CONN SOCKET 26AWG CRIMP GOLD35642 - ImmediateView Details
CONN SOCKET 28-32AWG CRIMP GOLDG125-0020005CONN SOCKET 28-32AWG CRIMP GOLD20501 - ImmediateView Details
CONN PIN 26AWG CRIMP GOLDG125-1010005CONN PIN 26AWG CRIMP GOLD6293 - ImmediateView Details
CONN PIN 28-32AWG CRIMP GOLDG125-1020005CONN PIN 28-32AWG CRIMP GOLD462 - ImmediateView Details
CONN RCPT HSG 12POS 1.25MMG125-2041296L0CONN RCPT HSG 12POS 1.25MM2613 - ImmediateView Details
CONN RCPT HSG 16POS 1.25MMG125-2041696L0CONN RCPT HSG 16POS 1.25MM1037 - ImmediateView Details
CONN RCPT HSG 20POS 1.25MMG125-2042096L0CONN RCPT HSG 20POS 1.25MM299 - ImmediateView Details
CONN RCPT HSG 26POS 1.25MMG125-2042696L0CONN RCPT HSG 26POS 1.25MM1413 - ImmediateView Details
CONN HDR HSG 12POS 1.25MMG125-3041296L0CONN HDR HSG 12POS 1.25MM389 - ImmediateView Details
CONN HDR HSG 12POS 1.25MMG125-3041296L4CONN HDR HSG 12POS 1.25MM334 - ImmediateView Details

Related Products

ImageManufacturer Part NumberDescriptionAvailable Quantity
TOOL HAND CRIMPER 26-32AWG SIDEZ125-900TOOL HAND CRIMPER 26-32AWG SIDE35 - ImmediateView Details
G125 CRIMP INS/REMOV TOOL KITZ125-902G125 CRIMP INS/REMOV TOOL KIT28 - ImmediateView Details
Published: 2014-03-19