SFM-137-02-F-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-137-02-F-D-A-K is a 74-position dual-row high-reliability SMT socket strip with 0.050" (1.27 mm) pitch, featuring a floating (F) alignment design and keyed polarization for precision board-to-board mating. Ideal for dense signal interconnects on compact PCBs. From $7.00; in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- SFM-137-02-F-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-137-02-F-D-A-K?
- 74-position dual-row layout at 0.050" (1.27 mm) pitch delivers high signal density in a compact SMT socket footprint
- Floating (F) contact design provides self-alignment tolerance to compensate for PCB-to-PCB coplanarity variation during mating
- Keyed (K) polarization prevents 180-degree mis-insertion across all 74 contact positions in dual-row SMT assemblies
What is SFM-137-02-F-D-A-K used for?
The SFM-137-02-F-D-A-K is designed for high-channel-count board-to-board signal interconnects in embedded computing platforms, FPGA expansion modules, and data-acquisition systems requiring 74-position dual-row SMT connectivity at 0.050" pitch. Its floating alignment feature tolerates slight PCB misalignment during board stacking, making it reliable for rack-mounted modules and plug-in daughter cards in precision instrumentation systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-137-02-F-D-A-K datasheet?
SFM-137-02-F-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-137-02-F-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the floating (F) designation provide for SFM-137-02-F-D-A-K mating alignment?
The F (floating) designation on the SFM-137-02-F-D-A-K means the socket contact housing can absorb minor lateral PCB misalignment during mating — critical in 74-position dual-row assemblies at 0.050" (1.27 mm) pitch where even a fraction of a millimeter of coplanarity variation across the board stack can cause contact damage without floating compliance.
How does keyed (K) polarization on SFM-137-02-F-D-A-K reduce assembly risk across 74 positions?
The K (keyed) feature physically blocks reversed mating of the SFM-137-02-F-D-A-K plug and socket pair, preventing incorrect signal connection across all 74 contacts. For dual-row 0.050" pitch connectors where both orientations may appear visually identical, this polarization key is a critical safeguard during PCB assembly and field module replacement.
For which FPGA or embedded computing designs is SFM-137-02-F-D-A-K a strong candidate?
The SFM-137-02-F-D-A-K suits FPGA daughter-card-to-carrier-board interconnects, SoM (system-on-module) connectors, and high-channel-count data-acquisition expansion boards that need 74 signal positions at 1.27 mm pitch in a compact SMT footprint with floating compliance for reliable mating in rack or cassette assemblies.
How does SFM-137-02-F-D-A-K compare to a rigid 74-position SMT socket without the floating feature?
A rigid 74-position SMT socket at 0.050" pitch requires near-perfect board coplanarity for all 74 contacts to engage simultaneously, while the SFM-137-02-F-D-A-K floating design accommodates lateral offsets of typically 0.3 mm to 0.5 mm, reducing the risk of bent contacts or intermittent connections in production board-stack assemblies with typical PCB flatness tolerances.
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