SFM-123-L2-FM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-L2-FM-D-A-K is a 46-position dual-row surface-mount socket strip with 0.050" (1.27 mm) pitch. It supports high-reliability board-to-board stacking with gold-plated contacts and a low-profile SMT footprint designed for compact, dense signal routing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-L2-FM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 46-position dual-row layout at 0.050" (1.27 mm) pitch for ultra-high-density SMT interconnects
- Gold-plated contacts delivering reliable, low-resistance signal paths across multiple mating cycles
- Low-profile surface-mount design enabling minimal board-to-board stacking height
- High-reliability socket strip rated for demanding industrial and embedded computing environments
Applications
The SFM-123-L2-FM-D-A-K is designed for high-density board-to-board applications requiring 46 signal connections within a 1.27 mm pitch SMT footprint. It finds use in embedded computing daughterboards, communications line cards, and test and measurement equipment where compact connector solutions with reliable multi-cycle mating performance are essential. Its dual-row configuration maximizes pin count while keeping the connector outline narrow on the PCB.
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 contact positions does the SFM-123-L2-FM-D-A-K provide, and how are they arranged?
The SFM-123-L2-FM-D-A-K provides 46 contact positions arranged in a dual-row configuration at a 0.050" (1.27 mm) pitch. This layout delivers one of the highest contact densities in the SFM series, enabling engineers to fit 46 signal paths within a compact SMT footprint suitable for space-constrained designs.
For which board-to-board stacking scenarios is the SFM-123-L2-FM-D-A-K especially well-suited?
This 46-position, 1.27 mm pitch socket strip is especially suited for low-profile board-to-board stacking where 46 signals must pass between a main board and a daughtercard. Applications include embedded computing modules, communications infrastructure cards, and instrumentation where a SMT socket with gold-plated contacts can deliver reliable performance over hundreds of mating cycles.
How does the 46-position SFM-123-L2-FM-D-A-K differ from the 44-position SFM-122 variant in a tight PCB layout?
Compared to the 44-position SFM-122, the SFM-123-L2-FM-D-A-K adds 2 extra positions at the same 1.27 mm pitch, extending the connector length by approximately 2.54 mm. Designers choose the 46-position variant when 2 additional signal or power connections are needed without switching to a different connector family or changing the SMT land pattern style.
What procurement considerations apply when sourcing the SFM-123-L2-FM-D-A-K in quantity?
The SFM-123-L2-FM-D-A-K is available through authorized SAMTEC distribution channels with global stocking. Its 1.27 mm pitch dual-row SMT format is a standard industry configuration, allowing procurement teams to qualify multiple authorized distributors for volume orders of this 46-position socket strip, reducing lead-time risk for production schedules.
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