SFM-123-02-SM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-02-SM-D-LC is a 46-position dual-row high-reliability surface mount socket strip with 1.27 mm (0.050 inch) pitch designed for compact mezzanine and daughter-card interfaces. Features gold-plated contacts and an SMT footprint compatible with automated reflow assembly. Available with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-02-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-123-02-SM-D-LC?
- 46-position dual-row 1.27 mm pitch SMT socket enabling compact board-to-board signal routing
- High-reliability contact design rated for repeated mating cycles in rugged operating environments
- Gold-plated contacts providing low contact resistance for reliable signal integrity
- Surface mount construction compatible with standard lead-free reflow soldering processes
- Dual-row layout halves the connector length compared to single-row solutions with equal pin count
What is SFM-123-02-SM-D-LC used for?
The SFM-123-02-SM-D-LC is used in daughter-card and mezzanine module assemblies for FPGA evaluation boards, DSP systems, and industrial controllers requiring 46 signal lines at 1.27 mm pitch. Its high-reliability socket construction supports repeated board insertion and removal in test fixtures and field-replaceable module designs. The SMT footprint integrates seamlessly into automated PCB assembly lines for high-volume embedded computing and measurement instrumentation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-123-02-SM-D-LC datasheet?
SFM-123-02-SM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-123-02-SM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many contact positions and what pitch does the SFM-123-02-SM-D-LC offer for mezzanine designs?
The SFM-123-02-SM-D-LC provides 46 positions in a dual-row layout with 1.27 mm (0.050 inch) pitch, yielding 23 contacts per row. This configuration fits a board footprint approximately 30 mm long, enabling compact daughter-card interfaces in embedded modules where board space is constrained to under 40 mm.
In which rugged or high-reliability environments is the SFM-123-02-SM-D-LC socket strip appropriate?
The SFM-123-02-SM-D-LC is designed for aerospace, defense, and industrial applications requiring connectors that maintain contact resistance below 30 mΩ over hundreds of mating cycles. Its gold-plated contacts resist oxidation in humid environments and remain stable over operating temperatures typically spanning -55°C to +125°C, making it suitable for avionics I/O modules and ruggedized field instruments.
How does the 1.27 mm pitch of SFM-123-02-SM-D-LC compare to a 2.54 mm pitch connector for the same 46-pin count?
At 1.27 mm pitch, the SFM-123-02-SM-D-LC connector body spans approximately 30 mm, roughly half the 60 mm length of a 2.54 mm pitch equivalent. This 50% reduction in footprint allows the remaining PCB area to be used for signal routing or power components, and the finer pitch also lowers parasitic inductance per contact, improving signal performance above 500 MHz.
Can the SFM-123-02-SM-D-LC withstand standard lead-free reflow soldering processes?
Yes, the SFM-123-02-SM-D-LC is designed for surface mount assembly and is compatible with standard lead-free reflow profiles peaking at 260°C, as required by JEDEC J-STD-020. Its SMT pads allow automated pick-and-place placement within 0.1 mm accuracy, and the connector body material withstands the thermal stress of a 30-second soak at 260°C without warpage or contact deformation.
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About SAMTEC
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