TFC-117-02-LM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-117-02-LM-D-A is a 34-position dual-row Tiger Eye cost-effective terminal strip with 0.050-inch pitch and low-profile mount, designed for compact SMT board-to-board mezzanine stacking. Proprietary Tiger Eye contacts deliver reliable low-resistance connections across hundreds of mating cycles in industrial and commercial PCB designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 34
- Lifecycle
- ACTIVE
- Datasheet
- TFC-117-02-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-117-02-LM-D-A?
- 34-position dual-row Tiger Eye terminal strip at 0.050" (1.27 mm) pitch for space-efficient SMT mezzanine interconnect
- Low-profile mount (LM) reduces overall stack height for applications with tight board-to-board clearance requirements
- Tiger Eye dual-beam contact provides wiping action ensuring contact resistance below 20 mΩ throughout service life
- Cost-effective TFC series design lowers BOM cost while maintaining Samtec high-reliability contact performance standards
What is TFC-117-02-LM-D-A used for?
The TFC-117-02-LM-D-A is used in compact board-to-board mezzanine stacking applications where a low-profile 34-position dual-row SMT connector at 0.050-inch pitch is required. Its low-mount (LM) configuration reduces the overall board stack height, making it well suited for slim embedded computing modules, portable instrumentation, and space-constrained industrial controllers. The Tiger Eye contact geometry maintains reliable signal connections across repeated mating operations in both benign commercial and moderately demanding industrial environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-117-02-LM-D-A datasheet?
TFC-117-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-117-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the LM designation in TFC-117-02-LM-D-A mean, and which designs benefit from it?
The LM designation stands for low-profile mount, indicating that the TFC-117 variant is designed to minimize stack height between two mated PCBs. This is beneficial in slim embedded modules, portable instruments, and compact industrial controllers where board-to-board clearance is less than 5 mm. The low-mount profile reduces the connector's above-board height while maintaining the 34-position dual-row connection at 0.050-inch pitch.
How many positions does the TFC-117-02-LM-D-A support, and how dense is the resulting SMT footprint?
The TFC-117-02-LM-D-A provides 34 positions in a dual-row configuration at 0.050-inch (1.27 mm) pitch, with 17 contacts per row. The connector body spans approximately 0.875 inch in length, concentrating 34 signal connections in under 1 inch of PCB edge. This high-density footprint is well suited for mezzanine boards and daughter cards where signal count exceeds what is practical with 2.54 mm pitch alternatives.
When would a designer choose the TFC-117-02-LM-D-A over a standard-height TFC connector of the same pin count?
The TFC-117-02-LM-D-A is the preferred choice when the assembled product has a height budget below approximately 4 mm between the two mated boards. Standard-height TFC connectors typically add 3 to 5 mm or more above the PCB surface, while the LM variant reduces this dimension to fit into slim enclosures or multi-board stack assemblies where clearance between boards is tightly constrained. The 34-position dual-row configuration at 0.050-inch pitch remains identical to non-LM variants.
What reliability does the Tiger Eye contact in the TFC-117-02-LM-D-A deliver for a mezzanine board used in periodic maintenance cycles?
The Tiger Eye contact uses a dual-beam design with 2 independent contact points and a wiping action on each mating cycle. This maintains contact resistance below 20 mΩ across 500 or more mating cycles, making the TFC-117-02-LM-D-A suitable for mezzanine boards removed and reinstalled during scheduled maintenance at intervals such as every 6 months over a 20-year system life. Gold plating on the mating contacts prevents oxidation that would otherwise increase contact resistance over time.
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