SFM-109-02-LM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-109-02-LM-D-LC is an 18-position dual-row high-reliability socket strip with 0.050-inch pitch designed for surface-mount assembly in compact mezzanine and daughter-card interconnect applications. Engineered for demanding environments requiring reliable multi-cycle mating performance. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- SFM-109-02-LM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 18-position dual-row socket at 0.050" (1.27 mm) pitch enables dense 18-signal board-to-board interconnects in a compact SMT footprint
- High-reliability construction maintains consistent contact force and low resistance across repeated mating and unmating cycles
- Surface-mount termination compatible with standard reflow soldering processes for automated PCB assembly
Applications
The SFM-109-02-LM-D-LC is engineered for mezzanine stacking and daughter-card interconnects in aerospace, defense, and industrial electronics systems where reliable 18-signal connectivity at 0.050-inch pitch is required. It mates with corresponding SFM-series header plugs to create low-profile board-to-board stack assemblies used in FMC modules, embedded processor boards, and custom backplane designs. The fine-pitch SMT design enables integration in densely populated PCBs where conventional 0.100-inch pitch connectors would exceed available footprint budgets.
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
How many contacts does SFM-109-02-LM-D-LC provide and in what row arrangement at 0.050-inch pitch?
The SFM-109-02-LM-D-LC provides 18 contacts in a dual-row arrangement at 0.050-inch (1.27 mm) pitch. This configuration delivers 18 individual signal connections within a compact surface-mount body that occupies roughly half the board footprint of an equivalent 18-position single-row connector at 0.100-inch pitch.
What type of solder termination does SFM-109-02-LM-D-LC use and is it reflow-compatible?
The SFM-109-02-LM-D-LC uses surface-mount solder termination compatible with standard reflow soldering at peak temperatures up to 260°C. This allows fully automated placement and soldering on SMT production lines, ensuring all 18 contacts are soldered with consistent joint quality without manual operations or selective soldering equipment.
For an 18-lane digital interface on a daughter card, how does SFM-109-02-LM-D-LC compare to a 0.100-inch pitch alternative?
The SFM-109-02-LM-D-LC at 0.050-inch pitch delivers the same 18-lane capacity in approximately one-quarter the area of a 0.100-inch pitch single-row connector. At 0.100-inch pitch, a single-row 18-position connector occupies about 43 mm in length, whereas the SFM-109-02-LM-D-LC's dual-row 0.050-inch layout reduces the connector zone to roughly 11 mm, freeing significant PCB space for signal routing and decoupling.
Which board-to-board stack height options are achievable when mating SFM-109-02-LM-D-LC with its corresponding header?
When paired with SAMTEC's compatible SFM-series dual-row header plugs, the SFM-109-02-LM-D-LC supports mated stack heights typically ranging from 4 mm to 20 mm depending on the selected header standoff option. Designers can choose the stack height that best suits their enclosure clearance and airflow requirements while maintaining the full 18-position 0.050-inch pitch electrical interface.
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