SFM-139-L2-S-D-A SAMTEC Connector (Other) In Stock
SAMTEC SFM-139-L2-S-D-A is a 78-position dual-row surface-mount socket strip with 0.050" (1.27 mm) pitch, providing high-reliability board-level interconnection in a compact footprint for dense signal routing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- SFM-139-L2-S-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 78-position dual-row layout at 0.050" (1.27 mm) pitch enables high signal density in compact PCB designs
- Surface-mount termination style supports automated reflow soldering for high-volume PCB assembly
- High-reliability contact construction designed for consistent mating cycles in industrial and embedded applications
Applications
The SFM-139-L2-S-D-A is ideal for high-density board-to-board and mezzanine interconnect applications in embedded computing, industrial automation, and test equipment. Its 78-position dual-row 0.050" pitch configuration provides efficient signal routing across backplane and daughtercard interfaces. Surface-mount termination ensures compatibility with standard SMT assembly processes and automated PCB manufacturing lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and position count does the SFM-139-L2-S-D-A offer for board-to-board connections?
The SFM-139-L2-S-D-A provides 78 total positions in a dual-row arrangement with a 0.050" (1.27 mm) pitch, delivering 39 pins per row. This high-density layout allows engineers to route a large number of signals across a narrow PCB area in compact embedded and industrial designs.
How does the SFM-139-L2-S-D-A fit into SMT manufacturing processes?
The SFM-139-L2-S-D-A uses a surface-mount termination style compatible with standard reflow soldering ovens and automated pick-and-place equipment. This eliminates manual through-hole insertion steps, reducing assembly cycle time and improving placement accuracy in high-volume PCB production at 0.050" (1.27 mm) pitch tolerances.
What mating connector series is compatible with the SFM-139-L2-S-D-A?
SAMTEC's SFM-139-L2-S-D-A mates with SAMTEC plug headers in the SFM or SMM series sharing the same 0.050" (1.27 mm) pitch and 78-position dual-row footprint. Matched pairs provide reliable 4-point contact wiping per pin and rated insertion forces suited for repeated mating in test and measurement fixtures.
For what industries is the SFM-139-L2-S-D-A commonly specified?
This 78-position, 0.050" pitch SMT socket strip is commonly specified in industrial automation controllers, military and aerospace electronics, and embedded computing modules where high pin density, reliable SMT termination, and compact board real estate are critical design requirements across hundreds of signal lines.
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