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Product Detailed Parameters
- Description：CONN HDR 1.25MM R/A 20POS
- Series：Gecko SL
- Mfr：Harwin Inc.
- Package：Strip
- Connector Type：Header
- Contact Type：Male Pin
- Pitch - Mating：0.049" (1.25mm)
- Number of Positions：20
- Number of Rows：2
- Row Spacing - Mating：0.049" (1.25mm)
- Number of Positions Loaded：All
- Style：Board to Board or Cable
- Shrouding：Shrouded - 4 Wall
- Mounting Type：Through Hole, Right Angle
- Termination：Solder
- Fastening Type：Screw Lock
- Contact Length - Mating：-
- Contact Length - Post：0.130" (3.30mm)
- Overall Contact Length：-
- Insulation Height：0.209" (5.30mm)
- Contact Shape：Circular
- Contact Finish - Mating：Gold
- Contact Finish Thickness - Mating：8.00µin (0.203µm)
- Contact Finish - Post：Gold
- Contact Material：Phosphor Bronze
- Insulation Material：Polyamide (PA4T), Nylon 4T, Glass Filled, Halogen Free
- Features：Mating Flange, Mounting Flange, Pick and Place, Polarizing Key
- Operating Temperature：-65°C ~ 150°C
- Ingress Protection：-
- Material Flammability Rating：UL94 V-0
- Insulation Color：Green
- Current Rating (Amps)：2A
- Voltage Rating：450V
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Overview
The Harwin G125-MH12005M4P is a Gecko-SL series male pin header designed for through-hole board mounting. It features a 20-position, 2-row configuration with a 1.25 mm pitch and right-angle orientation. The connector utilizes phosphor bronze contacts with gold plating to ensure reliable signal transmission. Rated for 2 A current and UL 94 V-0 flammability, it operates within a temperature range of -65°C to +150°C. The housing is constructed from green polyamide (PA), providing robust insulation with a resistance of 1 GOhm.
Feature Summary
- Screw-Lok board mount system with internally threaded fixings for secure mechanical attachment
- Right-angle through-hole termination compatible with automated pick-and-place processes
- Gold-plated phosphor bronze contacts ensuring low contact resistance and corrosion resistance
Applications
- Industrial control systems requiring high-vibration resistance
- Automotive electronics harness connections
- Consumer appliance mainboard interconnects
- Telecommunications equipment backplanes
Procurement Notes
Verify the specific suffix 'M4P' against official Harwin documentation to confirm the exact housing color and terminal length specifications. Ensure compatibility with mating female sockets from the same Gecko-SL family. Confirm RoHS compliance status via the latest datasheet before integration into regulated environments.
Selection Notes
Select this component when a right-angle, screw-lock male header is required for space-constrained PCB layouts. The 1.25 mm pitch allows for high-density wiring. Consider the 3.2 mm tail length for adequate solder joint formation on standard board thicknesses. Validate thermal endurance requirements against the +150°C maximum operating limit.
Part Context
This part belongs to the Harwin Gecko-SL family, known for its compact form factor and high reliability in harsh environments. The Screw-Lok feature distinguishes it from standard press-fit headers by providing superior retention under mechanical stress. It serves as a critical interface between rigid PCBs and flexible wiring harnesses.
Replacement Considerations
No direct public substitute part numbers are confirmed for this specific model. Cross-reference with other Harwin Gecko-SL variants only if mechanical dimensions and electrical ratings match exactly.
