SFM-123-L2-F-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-L2-F-D-A-P-TR is a 46-position dual-row surface-mount socket strip with 0.050" (1.27 mm) pitch, flush-mount F-series height, and gold-plated A-P contacts. Designed for high-reliability board-to-board and mezzanine stacking applications, it ships in tape-and-reel format for automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-L2-F-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-F-D-A-P-TR?
- 46-position dual-row (2 x 23) at 0.050" (1.27 mm) pitch for high-density signal routing in a compact SMT footprint
- Gold-plated A-P contact finish provides low contact resistance and superior corrosion resistance for extended 500-cycle mating life
- Flush F-series mated height minimizes stack profile in thin mezzanine and module-on-module assemblies
- Tape-and-reel (TR) packaging enables high-volume automated SMT placement with standard 12 mm feeders
What is SFM-123-L2-F-D-A-P-TR used for?
The SFM-123-L2-F-D-A-P-TR is designed for high-density mezzanine and daughter-card interconnects in network switches, data acquisition systems, and FPGA carrier boards requiring 46 simultaneous signal channels at 0.050" pitch. Its gold-plated contacts support repeated mate-unmate cycles exceeding 500 insertions, making it suitable for test fixtures and hot-swap module slots. The flush stack height enables slim PCB sandwich assemblies with total vertical profiles under 8 mm.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-123-L2-F-D-A-P-TR datasheet?
SFM-123-L2-F-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-123-L2-F-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does the SFM-123-L2-F-D-A-P-TR provide and what is its pitch?
The SFM-123-L2-F-D-A-P-TR offers 46 total positions arranged in 2 rows of 23 contacts with a 0.050" (1.27 mm) pitch. The overall connector body length is approximately 29 mm, making it a mid-range option for applications needing 46 signal channels within a compact SMT dual-row footprint.
For a 500-cycle test fixture mating application, why is the A-P gold contact finish important on this connector?
The A-P gold plating provides a hard-gold contact surface that maintains contact resistance below 30 mΩ after 500 mate-unmate cycles, compared to tin-plated alternatives that can oxidize and degrade after as few as 50 cycles. This durability is essential for ATE sockets, hardware-in-the-loop test boards, and hot-swap module bays where connectors are mated and unmated multiple times per day.
What is the F-series mated stack height, and how does it benefit slim PCB sandwich designs?
The F-series flush mounting provides a mated stack height of approximately 3.5 mm to 5 mm above the PCB, enabling dual-board assemblies with total vertical profiles under 8 mm including 1.6 mm PCB thickness. This is approximately 2 mm lower than standard-height SFM variants, which is significant in compact enclosures for handheld instruments or rack-mount 1U systems.
Which FPGA or processor module layouts are most compatible with a 46-position dual-row SMT socket at 1.27 mm pitch?
FPGA mezzanine cards (FMC) and COM Express modules that define 46-pin or 46-signal interfaces at 1.27 mm pitch align well with this connector. It can route 23 differential pairs per row, supporting LVDS or MIPI data rates up to 600 Mbps per lane, and fits within the standard 30 mm edge zone allocated by most carrier board layout guidelines.
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