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Product Detailed Parameters
- Description：CONN RCPT 78POS 0.1 TIN SMD
- Series：M20
- Mfr：Harwin Inc.
- Package：Tube
- Connector Type：Receptacle, Bottom or Top Entry
- Contact Type：Female Socket
- Style：Board to Board or Cable
- Number of Positions：78
- 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：Tin
- 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 M20-7873846 is a surface-mount receptacle from the Harwin M20 series, designed for board-to-board and cable connections. It features a dual-in-line configuration with 78 positions arranged in two rows, utilizing a standard 2.54 mm pitch. The connector employs female sockets with tin-plated contacts to ensure reliable mating performance. Constructed with black insulation rated UL94 V-0, it supports an operating temperature range of -40°C to +105°C. This component utilizes a push-pull retention mechanism for secure attachment.
Feature Summary
- Dual-in-line receptacle design accommodating high-density interconnect requirements
- Push-pull retention system ensures secure mechanical locking during operation
- Tin-plated female socket contacts provide durable mating interfaces
- UL94 V-0 rated black insulation material offers thermal stability
Applications
- High-density board-to-board interconnections
- Cable-to-board assembly applications
- Industrial electronic systems requiring robust retention
- Consumer electronics with space constraints
Procurement Notes
Verify the specific suffix and pin count against project requirements before ordering. Confirm surface-mount compatibility and reflow soldering profiles. Check current availability status as lead times may vary. Ensure mating connectors match the 2.54 mm pitch and dual-in-line configuration. Validate environmental ratings for the intended operational temperature range.
Selection Notes
Select this component when high pin counts are required in a compact footprint. The push-pull feature is suitable for applications needing frequent disconnection or enhanced security. Consider the surface-mount installation method for automated assembly processes. Evaluate the tin plating against corrosion requirements in the operating environment.
Part Context
This part belongs to the M20 series, which provides industrial-standard rectangular connectors. The series offers various configurations including single and dual-row options. It is widely used in embedded PC and motherboard designs. The M20 line emphasizes compactness and reliability for dense PCB layouts.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify cross-compatibility with existing mating hardware before considering alternatives.
