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Product Detailed Parameters
- Description：CONN HEADER R/A 20POS 1.25MM
- 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：Through Hole, Right Angle
- Termination：Solder
- Fastening Type：Latch Lock
- Contact Length - Mating：-
- Contact Length - Post：0.130" (3.30mm)
- Overall Contact Length：-
- Insulation Height：0.219" (5.56mm)
- Contact Shape：Circular
- Contact Finish - Mating：Gold
- Contact Finish Thickness - Mating：8.00µin (0.203µm)
- Contact Finish - Post：-
- 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：Green
- Current Rating (Amps)：2A
- Voltage Rating：250V
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Overview
The Harwin G125-MH12005L1P is a Gecko-Latch male header connector featuring a 1.25 mm pitch and 20 positions arranged in two rows. It utilizes a right-angle through-hole mounting style with solder pin termination. The contacts are gold-plated phosphor bronze, rated for 2 A current at 250 V. The housing is green polyamide (PA4T) with UL 94 V-0 flammability. Board lock retention secures the assembly, supporting an operating temperature range of -65°C to +150°C.
Feature Summary
- Integrates a board lock mechanism for secure PCB retention
- Employs a shrouded design for four-wall contact protection
- Features a right-angle orientation for compact layout integration
Applications
- Wire-to-board interconnections
- High-density signal routing
- Compact electronic module assembly
Procurement Notes
Verify the specific suffix against official Harwin documentation to confirm exact physical dimensions and locking configuration. Ensure compatibility with mating sockets within the Gecko-Latch series. Confirm RoHS compliance status via the manufacturer's latest declaration before finalizing procurement specifications.
Selection Notes
Select this component when a low-profile, right-angle connection is required alongside mechanical stability. The integrated board lock eliminates the need for separate retaining hardware. Verify that the 3.3 mm contact length accommodates the target PCB thickness and mating interface requirements effectively.
Part Context
This part belongs to the Harwin Gecko-Latch family, designed for micro-miniature applications. It complements the broader G125 ecosystem by offering enhanced mechanical retention compared to standard headers. The series supports high-reliability connections in space-constrained environments requiring robust physical locking.
Replacement Considerations
Direct substitutes include other Gecko-Latch variants with identical 1.25 mm pitch and 20-position configurations. Verify that replacement parts maintain the same right-angle orientation and board lock feature to ensure mechanical interchangeability.
