SFM-109-L2-LM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-109-L2-LM-D-LC is an 18-position dual-row high-reliability surface mount socket strip with 0.050 inch pitch and long-mill contact geometry for enhanced contact wipe. Designed for precise mezzanine and board-to-board interconnects with consistent low-resistance mating performance. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- SFM-109-L2-LM-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-109-L2-LM-D-LC?
- 18-position dual-row SMT socket strip at 0.050 inch (1.27 mm) pitch delivers high contact density for compact mezzanine interconnect designs
- Long-mill (LM) contact style provides extended wipe path on each of the 18 contacts, clearing oxide and debris for reliable low-resistance electrical connections
- High-reliability SFM-series construction with LC (low-cost) variant balances SAMTEC quality standards with cost-effective procurement for volume production
What is SFM-109-L2-LM-D-LC used for?
The SFM-109-L2-LM-D-LC is suited for high-reliability board-to-board and mezzanine socket applications in industrial computing, embedded systems, and test equipment where an 18-position 0.050 inch pitch dual-row surface mount socket is required with enhanced contact wipe performance. Its long-mill contact design makes it a reliable choice for PCBs that experience thermal cycling or vibration, ensuring stable contact resistance across all 18 positions throughout the product lifetime.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-109-L2-LM-D-LC datasheet?
SFM-109-L2-LM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-109-L2-LM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the long-mill contact geometry of the SFM-109-L2-LM-D-LC differ from standard SFM contacts?
The long-mill (LM) contact geometry in the SFM-109-L2-LM-D-LC provides a longer wiping action during pin insertion across all 18 positions, which displaces surface oxides and contamination to establish a more reliable electrical connection than standard-length contacts. This translates to more consistent contact resistance below typical thresholds even after repeated mating in environments with temperature variation or humidity.
What board assembly method is required for the SFM-109-L2-LM-D-LC and what pin count does it provide?
The SFM-109-L2-LM-D-LC requires surface mount assembly with standard SMT reflow soldering, compatible with FR-4 and high-speed PCB materials. It provides 18 positions in a dual-row configuration at 0.050 inch (1.27 mm) pitch, allowing 18 signal or power connections through a compact footprint without through-hole drilling.
For which design scenario is the LC variant of SFM-109-L2-LM-D-LC preferable to the standard SFM-109-L2-LM-D?
The LC (low-cost) variant of the SFM-109-L2-LM-D-LC is preferable in production programs where the application requires long-mill contact wipe performance and 18-position 0.050 inch dual-row connectivity but cost reduction on the connector bill of materials is a priority. It delivers the same functional contact wipe improvement over standard contacts while offering procurement cost savings for volume orders compared to fully-specified premium SFM variants.
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About SAMTEC
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