G125-FS11205F2P

Overview

The Harwin G125-FS11205F2P is a 12-position female socket connector from the Gecko series, designed for surface mount applications. It features a 1.25mm pitch and dual-row configuration with reverse fix tabs for secure board attachment. The contacts are gold-plated copper alloy, rated for 2A current at 30V DC. Operating temperature ranges from -65°C to +150°C. Insulation is halogen-free PA4T glass fiber reinforced nylon. The component supports pick-and-place assembly via tape and reel packaging.

Feature Summary

• Low-profile dual-row design optimized for space-constrained PCB layouts
• Reverse fix tab mechanism ensures robust mechanical retention on the substrate
• Gold-plated contacts provide reliable signal transmission in demanding environments
• Halogen-free high-temperature insulation material meets strict safety standards

Applications

• Automotive electronic control units
• Industrial instrumentation interfaces
• General purpose board-to-board interconnects

Procurement Notes

Verify the specific ordering suffix against the official Harwin datasheet to confirm contact plating thickness and insulation color specifications. Ensure the procurement channel provides valid traceability documentation for the halogen-free material composition. Confirm that the tape and reel packaging orientation matches the automated assembly equipment requirements prior to finalizing the purchase order.

Selection Notes

Select this model when a low-profile, high-reliability solution is required for dual-row signal connections. The 1.25mm pitch allows for dense packing while maintaining adequate spacing. Consider the reverse fix feature if standard through-hole or top-mount retention is insufficient for the application's vibration profile. Verify that the 2A current rating aligns with the circuit load requirements.

Part Context

This component belongs to the Harwin Gecko (G125) family of micro-miniature connectors. The series is engineered for SWaP-C optimization, offering high performance in extreme conditions. The G125 line includes various configurations for cable-to-board and board-to-board applications, utilizing durable materials and precise manufacturing tolerances for consistent electrical performance.

Replacement Considerations

Direct substitutes within the same series include G125-FS11205L0R, which shares identical pin count and pitch but differs in locking tab orientation. Cross-series replacements require careful evaluation of mating interface compatibility and mechanical footprint constraints to ensure functional equivalence.