G125-MS12005L3R

Overview

The G125-MS12005L3R is a Gecko-Latch series power-to-board connector manufactured by Harwin. It features a vertical surface-mount design with a 1.25 mm pitch and 20 positions arranged in a 2x10 configuration. The male pins are constructed from phosphor bronze with gold plating, housed in green polyamide (PA) insulation. Rated for 2 A current and 250 V/450 V voltage, it operates within a temperature range of -65°C to +150°C. The component offers 10 GOhms insulation resistance and is supplied in tape-and-reel packaging for automated assembly.

Feature Summary

• Vertical surface-mount header with integrated latch mechanism for secure mating
• Gold-plated phosphor bronze contacts ensure reliable conductivity
• Polyamide housing provides high thermal stability up to 150°C
• Tape-and-reel packaging supports efficient pick-and-place manufacturing

Applications

• High-density power distribution on printed circuit boards
• Automotive electronic control units requiring robust connections
• Industrial equipment with space-constrained power interfaces
• Consumer electronics utilizing compact power-to-board architectures

Procurement Notes

Verify the specific suffix 'L3R' confirms the tape-and-reel packaging format required for your assembly line. Ensure compatibility with the corresponding Gecko-Latch female counterpart to maintain proper latching engagement. Confirm that the 1.25 mm pitch aligns with your PCB footprint design rules. Check RoHS compliance documentation if environmental regulations apply to your final product deployment.

Selection Notes

Select this part when a vertical SMT power connection with mechanical latching is necessary. The 20-position layout suits applications needing multiple power or ground lines in a compact area. Consider the 150°C operating limit for high-thermal environments. Verify that the 2 A per contact rating meets the total current requirements of the target circuit without derating concerns.

Part Context

This component belongs to Harwin's Gecko-Latch family, designed for secure, vibration-resistant connections in demanding environments. The G125 series specifically targets power-to-board applications where space efficiency and reliability are critical. The L3R designation indicates the reel packaging variant, distinguishing it from cut-tape or bulk options available within the same electrical specification set.

Replacement Considerations

No public confirmed substitute part numbers are documented for this specific Gecko-Latch configuration. Direct replacement requires matching the 1.25 mm pitch, 2x10 position count, vertical SMT orientation, and latching mechanism. Alternative connectors may lack the specific Gecko-Latch engagement profile, necessitating mechanical redesign.