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Product Detailed Parameters
- Description：CONN RCPT
- Series：M20
- Mfr：Harwin Inc.
- Package：Bulk
- Connector Type：Receptacle, Bottom or Top Entry
- Contact Type：Female Socket
- Style：Board to Board or Cable
- Number of Positions：18
- Number of Positions Loaded：All
- Pitch - Mating：0.100" (2.54mm)
- Number of Rows：2
- Row Spacing - Mating：0.100" (2.54mm)
- Mounting Type：Surface Mount
- Termination：Solder
- Fastening Type：Push-Pull
- Contact Finish - Mating：Gold
- Contact Finish Thickness - Mating：-
- Insulation Color：Black
- Insulation Height：0.295" (7.50mm)
- Contact Length - Post：-
- Operating Temperature：-40°C ~ 105°C
- Material Flammability Rating：UL94 V-0
- Contact Finish - Post：Tin
- Mated Stacking Heights：10.04mm, 11.63mm
- Ingress Protection：-
- Features：-
- Current Rating (Amps)：3A
- Voltage Rating：1000V
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Overview
The Harwin M20-7870942P is a surface-mount socket header from the M20 series, designed for board-to-board or cable connections. It features a 2-row configuration with 18 total positions (9+9) and a 2.54 mm pitch. The connector utilizes square contacts with gold plating on the mating interface and tin plating on the tail. Constructed from black PA6T insulation and brass contacts, it supports a rated current of 3A per contact at 250V. Operating temperatures range from -40°C to 105°C, with UL94 V-0 flammability rating.
Feature Summary
- Surface-mount design with bottom entry socket assembly
- Push-pull locking mechanism for secure retention
- Gold-plated mating contacts for reliable signal transmission
- Cuttable header format for flexible circuit layout
Applications
- Industrial control systems requiring robust SMT headers
- Automotive electronics modules
- Communication equipment backplanes
- Consumer electronic device interconnects
Procurement Notes
Verify the exact suffix 'P' against official Harwin documentation to confirm specific packaging or tape-and-reel specifications. Ensure compatibility with mating pin headers regarding stacking height and tolerance. Confirm RoHS compliance status through the latest datasheet revision before procurement.
Selection Notes
Select this component when a low-profile, double-row SMT socket is required for high-density applications. Consider the 2.54mm pitch for standard spacing needs. Verify that the PCB footprint matches the specified dimensions for proper solder joint integrity during reflow processes.
Part Context
This part belongs to the Harwin M20 series, known for its versatility in rectangular connectors. The M20 family offers various configurations including headers, sockets, and wire housings. This specific model represents a dual-row socket variant optimized for surface mounting technologies.
Replacement Considerations
M20-7870942 is a direct functional equivalent within the same series. Cross-reference with M20-7871046 for similar 20-position variants if pin count adjustments are permissible.
