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Product Detailed Parameters
- Description：CONN RCPT 4POS 0.1 GOLD PCB
- 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：4
- Number of Positions Loaded：All
- Pitch - Mating：0.100" (2.54mm)
- Number of Rows：2
- Row Spacing - Mating：0.100" (2.54mm)
- Mounting Type：Through Hole
- Termination：Solder
- Fastening Type：Push-Pull
- Contact Finish - Mating：Gold
- Contact Finish Thickness - Mating：-
- Insulation Color：Black
- Insulation Height：0.197" (5.00mm)
- Contact Length - Post：0.118" (3.00mm)
- Operating Temperature：-40°C ~ 105°C
- Material Flammability Rating：UL94 V-0
- Contact Finish - Post：Tin
- Mated Stacking Heights：-
- Ingress Protection：-
- Features：-
- Current Rating (Amps)：3A
- Voltage Rating：1000V
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Overview
The Harwin M20-7850242 is a dual-row socket header assembly from the M20 series, designed for board-to-board interconnections. It features a 2.54 mm (0.100 inch) pitch with 20 positions arranged in two rows of ten. The connector utilizes a bottom-entry design for mating and employs surface-mount termination for PCB attachment. Constructed with polyamide insulation and brass contacts, it supports a maximum current rating of 3 A per contact. The unit operates within a temperature range of -40°C to +105°C and meets UL94 V-0 flammability standards.
Feature Summary
- Dual-row socket configuration with bottom-entry mating interface
- Surface-mount termination style for automated PCB assembly
- Polyamide insulation housing with UL94 V-0 fire rating
- Brass contacts rated for 3 A continuous current
Applications
- Board-to-board signal transmission
- Industrial control module interconnects
- Consumer electronics internal wiring
- Telecommunications equipment backplanes
Procurement Notes
Verify the specific suffix against the official Harwin datasheet to confirm exact pin count and termination type. Ensure compatibility with standard SMT reflow profiles. Check RoHS compliance status for your region. Confirm lead time availability through authorized distributors. Validate that the selected variant matches the required mechanical stack height constraints.
Selection Notes
Select this component when a low-profile, dual-row connection is required for dense circuit layouts. The surface-mount format eliminates the need for additional mechanical fasteners. Consider the 2.54 mm pitch for standard component spacing. Evaluate thermal resistance during soldering processes. Ensure mating connectors align with the bottom-entry specification.
Part Context
This part belongs to the Harwin M20 connector family, known for high-density interconnect solutions. The M20 series offers various configurations including headers, sockets, and cable assemblies. The M20-7850242 specifically addresses needs for reliable, space-constrained electronic applications requiring robust electrical performance.
Replacement Considerations
M20-7850246
FAQ
What is the mating orientation for this connector?
The M20-7850242 features a bottom-entry design, meaning the mating plug connects from beneath the PCB.
Is this connector suitable for high-temperature environments?
Yes, it is rated for operation up to +105°C, making it suitable for moderate thermal applications.
