SFM-123-L2-SM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-L2-SM-D-A-P-TR is a 46-position dual-row high-reliability surface mount socket strip at 0.050 inch pitch with L2 contact length, gold contacts, and polarization key. Ideal for mezzanine and expansion board applications. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-L2-SM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-123-L2-SM-D-A-P-TR?
- 46-position dual-row SMT socket strip at 0.050 inch (1.27 mm) pitch providing high-density board-to-board signal connectivity in a compact footprint
- L2 extended contact length with SM tail style accommodating larger board-to-board stack heights for components protruding between mated PCBs
- Gold-plated (A) contacts combined with P polarization key ensuring low contact resistance and orientation-safe mating across high-cycle industrial applications
What is SFM-123-L2-SM-D-A-P-TR used for?
The SFM-123-L2-SM-D-A-P-TR is suited for FPGA mezzanine card interfaces, industrial sensor expansion modules, and embedded processor daughterboards where 46 dual-row signals must be routed at 0.050 inch pitch between stacked PCBs. Its polarization key and gold contacts provide assured mating and reliable performance in telecom, defense, and test-and-measurement equipment requiring high interconnect density with minimal footprint.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-123-L2-SM-D-A-P-TR datasheet?
SFM-123-L2-SM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-123-L2-SM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal positions does the SFM-123-L2-SM-D-A-P-TR provide, and at what pitch are they arranged?
The SFM-123-L2-SM-D-A-P-TR provides 46 positions arranged in a dual-row configuration at 0.050 inch (1.27 mm) pitch. This gives 23 positions per row, enabling dense routing of data buses, control lines, and power signals between stacked boards in a surface mount footprint that occupies significantly less PCB area than equivalent through-hole connectors.
What is the advantage of the SM tail style in the SFM-123-L2-SM-D-A-P-TR compared to standard surface mount tails?
The SM tail style on the SFM-123-L2-SM-D-A-P-TR provides solder tail geometry optimized for reflow soldering with controlled stand-off height, ensuring coplanarity across all 46 positions during automated SMT assembly. This reduces solder joint voids and open-circuit defects compared to standard tails, which is especially important in high-reliability industrial boards where 100% solder joint integrity across all 46 pins is mandatory.
When should an engineer select the SFM-123-L2-SM-D-A-P-TR over a 40-position SFM connector for an embedded I/O expansion board?
The 46-position SFM-123-L2-SM-D-A-P-TR is the right choice when the I/O expansion board requires simultaneous routing of a 32-bit address or data bus plus at least 14 additional control, interrupt, or power signals in a single connector. Splitting connectivity across a 40-position and a separate smaller connector would increase PCB routing complexity; consolidating all 46 signals at 0.050 inch pitch in one SMT package simplifies layout and reduces assembly cost.
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About SAMTEC
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