TFM-143-03-STL-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-143-03-STL-D-LC is a high-reliability Tiger Eye terminal strip with 0.050 inch pitch, dual-row 86-pin board stacking connector featuring low-cost finish and straight through-hole leads for secure PCB attachment. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- TFM-143-03-STL-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-143-03-STL-D-LC?
- 0.050" pitch dual-row 86-position through-hole board stacking connector for maximum signal density in high-channel-count designs
- Low-cost (LC) contact finish option reducing per-unit cost while maintaining reliable signal integrity across 86 contact positions
- Straight through-hole lead (STL) configuration providing robust mechanical retention and solder joint strength in demanding environments
What is TFM-143-03-STL-D-LC used for?
The TFM-143-03-STL-D-LC is tailored for high-channel-count board stacking in test and measurement equipment, data acquisition systems, and industrial backplane applications requiring reliable 86-pin dual-row interconnects at 0.050 inch pitch. Its straight through-hole lead design provides superior mechanical retention compared to SMT alternatives, making it well-suited for environments subject to vibration and mechanical stress. The low-cost contact finish option makes this connector economical for high-volume production without sacrificing functional reliability.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-143-03-STL-D-LC datasheet?
TFM-143-03-STL-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-143-03-STL-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total signal contacts does the TFM-143-03-STL-D-LC provide and how are they arranged?
The TFM-143-03-STL-D-LC provides 86 total contact positions arranged in 2 rows of 43 pins each at 0.050 inch pitch, enabling high-density signal routing between stacked PCBs. This high contact count supports complex signal buses and parallel data interfaces in test and measurement or industrial backplane systems.
Why might a design engineer choose TFM-143-03-STL-D-LC for a vibration-prone industrial application?
The STL designation indicates straight through-hole leads that create solder joints passing fully through the PCB, providing far greater mechanical shear strength than SMT solder joints. In applications subject to vibration levels of 10 G or more, such as industrial machinery and transportation electronics, through-hole solder joints withstand mechanical stress far better than surface-mount alternatives, reducing field failure rates for this 86-pin connector.
What cost advantage does the LC finish option provide compared to standard gold-plated versions of the TFM series?
The LC (low-cost) contact finish on the TFM-143-03-STL-D-LC reduces precious metal content compared to full gold-plated versions, lowering per-unit connector cost by a meaningful percentage in high-volume orders. For applications requiring fewer than 100 mating cycles in benign indoor environments, the LC finish maintains acceptable contact resistance below 50 milliohms, making it the budget-conscious choice for 86-pin stacking applications.
In which test and measurement scenarios does the 86-pin capacity of TFM-143-03-STL-D-LC provide a clear design advantage?
Test and measurement systems using parallel analog front-end architectures or high-speed digital buses benefit from the 86 contact positions of the TFM-143-03-STL-D-LC, allowing 8 to 16 independent signal channels plus power and ground rails on a single connector. Data acquisition boards in oscilloscopes, logic analyzers, and multi-channel DAQ modules can route over 64 signal lines plus control and power connections within a compact 0.050 inch pitch footprint.
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