G125-MS11205M1P

Overview

The Harwin G125-MS11205M1P is a Gecko-SL series pin header connector designed for surface mount technology. It features a 1.25 mm pitch with 12 positions arranged in two rows. The connector utilizes male pins with gold plating on phosphor bronze contacts, rated for 2 A current and 450 VAC/DC voltage. Constructed from black polyamide (PA) insulation with UL94 V-0 flammability rating, it operates within a temperature range of -65°C to +150°C. The design includes reverse fix tape for secure SMT placement.

Feature Summary

• Gecko-SL series locking mechanism ensures secure mating retention
• Surface mount configuration with reverse fix tape for automated assembly stability
• Gold-plated phosphor bronze contacts provide reliable electrical conductivity
• High-temperature resistant polyamide insulation supports demanding thermal environments

Applications

• Power distribution boards requiring compact high-current connections
• Industrial control systems needing robust surface-mounted interconnects
• Automotive electronics utilizing Gecko-Latch or Gecko-SL compatible counterparts
• Consumer appliances with space-constrained board-to-board interfaces

Procurement Notes

Verify the specific suffix M1P confirms the reverse fix tape feature and SMT orientation. Confirm that the gold plating thickness meets application requirements for contact resistance. Ensure the polyamide material grade aligns with thermal management needs. Cross-reference the datasheet for exact mechanical dimensions against PCB footprint constraints. Validate RoHS compliance status through official manufacturer documentation before procurement.

Selection Notes

Select this component when a low-profile, surface-mount male header is required for 1.25 mm pitch applications. The Gecko-SL series offers superior retention compared to standard headers. Consider the 2 A current rating and 450 V voltage limit for circuit compatibility. The reverse fix tape aids in preventing component displacement during reflow soldering. Evaluate thermal performance within the specified -65°C to +150°C operating range.

Part Context

This part belongs to Harwin's Gecko family, which includes Gecko-Latch and Gecko-SL variants. The Gecko-SL series specifically targets surface mount applications with enhanced retention features. It complements cable assemblies and female connectors within the same 1.25 mm pitch ecosystem. The series is designed for high-reliability connections in industrial and automotive sectors.

Replacement Considerations

Direct substitutes are not explicitly listed in public data. Compatible alternatives may include other 1.25 mm pitch SMT male headers from Harwin's Gecko-SL line, such as G125-MS11205L1P, though mechanical fixation methods may differ. Verify pin count, pitch, and mounting style before substitution.