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Product Detailed Parameters
- Description：FEMALE HEADER
- Series：A-BL127
- Mfr：Assmann WSW Components
- Package：Bulk
- Connector Type：Receptacle, Bottom Entry
- Contact Type：Female Socket
- Style：Board to Board
- Number of Positions：42
- Number of Positions Loaded：All
- Pitch - Mating：0.050" (1.27mm)
- Number of Rows：2
- Row Spacing - Mating：0.050" (1.27mm)
- Mounting Type：Surface Mount
- Termination：Solder
- Fastening Type：Push-Pull
- Contact Finish - Mating：Gold
- Contact Finish Thickness - Mating：Flash
- Insulation Color：Black
- Insulation Height：0.181" (4.60mm)
- Contact Length - Post：-
- Operating Temperature：-40°C ~ 105°C
- Material Flammability Rating：UL94 V-0
- Contact Finish - Post：-
- Mated Stacking Heights：-
- Ingress Protection：-
- Features：Pick and Place
- Current Rating (Amps)：1A per Contact
- Voltage Rating：-
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Overview
The A-BL127-DG-G42MR1 is a 42-position rectangular board-to-board connector from the AW 127 series by Assmann WSW Components. It features a 1.27 mm (0.050 inch) pitch and utilizes a surface mount termination style with bottom entry orientation. The connector employs gold-plated contacts housed within a PBT plastic shell rated for UL 94 V-0 flammability. Designed for reliable signal transmission, it supports a maximum voltage of 100V and operates within a temperature range of -40°C to +105°C.
Feature Summary
- Surface mount bottom entry configuration for compact PCB integration
- Gold contact plating ensures stable electrical performance
- PBT housing material provides thermal stability and UL 94 V-0 rating
Applications
- High-density electronic device interconnections
- Motherboard and daughterboard connections in computing hardware
- Industrial control system circuit boards
Procurement Notes
Verify the specific suffix 'DG' confirms gold plating and 'MR1' indicates the correct reel or tape packaging format required for automated assembly. Ensure compatibility with standard 1.27mm pitch mating headers. Confirm that the bottom-entry design aligns with the target PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a low-profile, surface-mount solution is required for high-pin-count applications. The 1.27mm pitch offers higher density than standard 2.54mm connectors. Consider the bottom-entry orientation carefully as it dictates the vertical space available above the PCB. Gold plating is essential for environments requiring corrosion resistance and repeated mating cycles.
Part Context
This part belongs to the AW 127 series, which specializes in fine-pitch board-to-board connectors. The series is characterized by its robust mechanical design and suitability for modern electronics manufacturing processes. Assmann WSW Components focuses on providing standardized and custom connector solutions for various industrial and consumer technology sectors.
Replacement Considerations
Direct substitutes must match the 1.27mm pitch, 42 positions, surface mount bottom entry, and gold plating specifications. Generic equivalents may lack the specific UL 94 V-0 rating or precise dimensional tolerances required for tight fitment.
