SFM-117-L2-FM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-117-L2-FM-D-A-P-TR is a 34-position dual-row high-reliability socket strip with 1.27 mm (0.050 inch) pitch for surface-mount assembly. It features a floating mount design, board-to-board alignment pins, and tape-and-reel packaging, making it suitable for demanding high-density interconnect applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 34
- Lifecycle
- ACTIVE
- Datasheet
- SFM-117-L2-FM-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-117-L2-FM-D-A-P-TR?
- 34-position dual-row socket strip on 1.27 mm (0.050 inch) pitch for ultra-high-density surface-mount board-to-board connections
- Floating mount (-FM) mechanism absorbs up to ±0.5 mm PCB-to-PCB misalignment, protecting solder joints during blind-mate assembly
- Alignment pins (-P) enable precise mechanical registration between mating boards before electrical contact engagement
What is SFM-117-L2-FM-D-A-P-TR used for?
The SFM-117-L2-FM-D-A-P-TR is engineered for rugged board-to-board interconnects in defense electronics, industrial computing backplanes, and high-reliability communications equipment where 34 contacts at 1.27 mm pitch must reliably mate under mechanical tolerance conditions. Alignment pins ensure correct positioning before the 34 positions engage, preventing contact damage in blind-mate chassis assemblies. Tape-and-reel packaging supports high-volume SMT production, reducing per-unit cost in large-scale deployments of network line cards and embedded processor modules.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-117-L2-FM-D-A-P-TR datasheet?
SFM-117-L2-FM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-117-L2-FM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How do the alignment pins (-P) on the SFM-117-L2-FM-D-A-P-TR improve connector reliability in blind-mate chassis designs?
The alignment pins enter guide holes in the mating PCB or chassis before any of the 34 electrical contacts engage, ensuring contacts are centered within 0.1 mm before mating force is applied. Without these pins, a 34-position 1.27 mm pitch connector subjected to blind-mate forces could suffer bent contacts or solder joint cracking if the boards are misaligned by more than the floating mount range of ±0.5 mm.
For which high-speed signal standards is a 34-position 1.27 mm pitch socket strip like the SFM-117 series well-characterized?
The SFM-117 series is characterized for differential signal pairs up to several Gbps per pair with insertion loss below -1 dB at 3 GHz. This performance covers USB 3.0 at 5 Gbps, PCIe Gen 1 at 2.5 Gbps, and LVDS pairs at up to 1.6 Gbps, making the 34-position strip suitable for FPGA daughtercards exchanging high-speed data with a baseboard.
Why does the SFM-117-L2-FM-D-A-P-TR include both a floating mount and alignment pins — are they not redundant features?
The two features address different phases of mating. Alignment pins provide coarse PCB-to-PCB registration over a range of several millimeters during initial approach, while the floating mount compensates for the fine residual misalignment of ±0.5 mm after the pins are engaged. Together they handle the full tolerance stack of a chassis assembly where PCBs are mounted in card guides with manufacturing tolerances of ±1 to ±2 mm.
What is the current rating per contact for the SFM-117-L2-FM-D-A-P-TR, and how can multiple contacts carry higher supply current?
Individual SFM-series contacts at 1.27 mm pitch are rated for approximately 1 A per contact at a 30°C temperature rise above ambient. In a 34-position strip, assigning 4 adjacent contacts to a single power rail provides 4 A of current capacity, which is sufficient to supply a mid-range FPGA core from a dedicated power section on a daughtercard without requiring a separate power connector.
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