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Product Detailed Parameters
- Description：CONN HDR VERT 20POS
- Series：Gecko
- 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：Surface Mount
- Termination：Solder
- Fastening Type：Latch Lock
- Contact Length - Mating：-
- Contact Length - Post：-
- Overall Contact Length：-
- Insulation Height：0.193" (4.90mm)
- 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：Board Lock
- Operating Temperature：-65°C ~ 150°C
- Ingress Protection：-
- Material Flammability Rating：UL94 V-0
- Insulation Color：Black
- Current Rating (Amps)：2A
- Voltage Rating：450VAC/DC
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Overview
The Harwin G125-MS12005L2P is a Gecko series power-to-board header featuring a 1.25 mm pitch and 20 positions in a dual-row configuration. It utilizes male pin contacts made of phosphor bronze with gold plating, housed in a green polyamide (PA) shell. Designed for surface-mount installation, it supports solder termination and operates within a temperature range of -65°C to +150°C. The connector carries electrical ratings of 2 A current and 250 V/450 V voltage, with an insulation resistance of 10 GOhms.
Feature Summary
- Vertical surface-mount design optimized for board-to-board or wire-to-board power distribution
- Gold-plated phosphor bronze contacts ensure reliable conductivity and corrosion resistance
- Polyamide housing provides high thermal stability up to 150°C and robust mechanical support
Applications
- Power distribution in industrial control systems
- Server and telecommunications equipment backplanes
- Automotive electronics power modules
Procurement Notes
Verify the specific suffix L2P against the official datasheet to confirm the exact contact length and packaging format. Ensure compatibility with mating sockets regarding the 1.25 mm pitch and dual-row alignment. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement orders.
Selection Notes
Select this component when a low-profile, high-density power connection is required for surface-mount assembly. The 1.25 mm pitch allows for compact layouts compared to standard 2.54 mm headers. Consider the 2 A current rating per contact to ensure adequate power handling for the target application without exceeding thermal limits.
Part Context
This part belongs to the Harwin Gecko family, known for its slim profile and secure locking mechanisms. The G125 series specifically targets high-reliability applications requiring robust power connections in space-constrained environments. It complements other Gecko variants offering different mounting styles and contact configurations.
Replacement Considerations
Direct substitutes include Harwin G125-MS12005L3R (Gecko-Latch variant) and G125-MV12005M2P (Gecko-SL Jackscrew variant). Verify that alternative parts match the 1.25 mm pitch, 20-position count, and SMT mounting requirements.
