SFM-124-L2-SM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-124-L2-SM-D-LC is a 48-position dual-row high-reliability surface-mount socket strip with 1.27 mm (0.050 inch) pitch and low-contact tail height, providing a compact high-density SMT interface for mezzanine and daughter-card connectors. It suits demanding aerospace, defense, and industrial applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- SFM-124-L2-SM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-124-L2-SM-D-LC?
- 48-position dual-row 1.27 mm (0.050 inch) pitch SMT socket for high-density mezzanine board-to-board mating
- Low-contact (LC) tail height minimizes board-to-board stacking distance in slim module-on-module PCB assemblies
- High-reliability gold-plated contacts maintain consistent electrical performance across extended mating cycles in harsh environments
What is SFM-124-L2-SM-D-LC used for?
The SFM-124-L2-SM-D-LC is ideal for 48-pin mezzanine board-to-board socket interfaces in FPGA daughter cards, sensor modules, and compact embedded processor assemblies. Its 0.050 inch pitch provides high contact density in a smaller PCB footprint compared to standard 0.100 inch alternatives. Aerospace avionics, defense electronics, and advanced medical instrumentation commonly specify SFM series sockets for their combination of reliability, compact size, and SMT compatibility.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-124-L2-SM-D-LC datasheet?
SFM-124-L2-SM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-124-L2-SM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact count and pitch does the SFM-124-L2-SM-D-LC offer for mezzanine socket designs?
The SFM-124-L2-SM-D-LC provides 48 positions in a dual-row layout at 1.27 mm (0.050 inch) pitch, with 24 contacts per row. This configuration delivers high contact density in a compact SMT footprint, making it suitable for 48-pin mezzanine connectors in space-constrained embedded module and daughter-card PCB designs.
How does the LC tail height variant of the SFM-124-L2-SM-D-LC support slim stacking assemblies?
The LC (low-contact) tail designation on the SFM-124-L2-SM-D-LC reduces the solder tail length below the PCB surface, lowering the overall stacking height when mated with a complementary header on a parent board. For slim mezzanine stacks where total board gap must be minimized, the LC variant at 1.27 mm pitch achieves tighter board-to-board clearance than standard tail height SFM sockets.
Which PCB assembly method does the SFM-124-L2-SM-D-LC support and how does it compare to through-hole sockets?
The SFM-124-L2-SM-D-LC uses surface-mount termination compatible with standard SMT reflow soldering, eliminating the 48 through-holes required by DIP or press-fit socket alternatives. This simplifies PCB fabrication and reduces manufacturing cost for 48-position dual-row mezzanine sockets, while maintaining reliable contact performance at 1.27 mm pitch.
For which high-reliability sectors are SAMTEC SFM-124 series sockets most commonly qualified?
SAMTEC SFM-124 series sockets are commonly specified for aerospace, defense, and precision medical equipment where connectors must perform reliably from -55°C to +125°C. Gold-plated contacts ensure stable contact resistance over hundreds of insertion and removal cycles at 48 positions, meeting the stringent mechanical and environmental requirements of military avionics and scientific instrumentation.
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