TFM-141-32-STL-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-141-32-STL-D-A-P-TR is a high-reliability Tiger Eye terminal strip with 0.050" (1.27 mm) pitch, dual-row layout, and 41 positions per row for 82 total contacts. It features a low-profile stackable STL termination style with polarization and tape and reel packaging for automated SMT board-to-board interconnection.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 82
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-141-32-STL-D-A-P-TR?
- Stackable low-profile (-STL) termination enables precise board-to-board standoff control in multi-PCB assemblies without additional spacers
- 82 total contacts at 0.050" (1.27 mm) pitch provide high signal density in a compact dual-row SMT footprint for complex module interfaces
- Tiger Eye dual-beam contacts deliver consistent contact resistance below 20 mΩ per pin for reliable high-speed signal routing
- Polarization (-P) keying and tape and reel (-TR) packaging together prevent assembly errors and support automated high-volume SMT production
What is TFM-141-32-STL-D-A-P-TR used for?
The TFM-141-32-STL-D-A-P-TR is designed for stackable multi-board assemblies in high-performance computing, communications infrastructure, and modular instrumentation where controlled board-to-board spacing is critical. Its STL stackable profile allows precise definition of the inter-board gap without additional mechanical standoffs, simplifying mechanical design in compact card-cage systems. The 82-pin dual-row configuration handles high-bandwidth signal buses and mixed power and data routing between stacked PCBs at fine 0.050" pitch.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-141-32-STL-D-A-P-TR datasheet?
TFM-141-32-STL-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-141-32-STL-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the STL suffix in TFM-141-32-STL-D-A-P-TR indicate about its mechanical design?
STL indicates a stackable low-profile termination style, which means the connector body is designed to control the mated board-to-board standoff distance mechanically. This eliminates the need for separate nylon or metal spacers in stacked PCB assemblies, saving 2–4 assembly steps per board pair and maintaining a repeatable inter-board gap typically in the range of 3 mm to 8 mm depending on the matched header.
How many signal lines can the TFM-141-32-STL-D-A-P-TR route, and at what pitch?
The TFM-141-32-STL-D-A-P-TR routes up to 82 independent signals across 2 rows of 41 contacts at a 0.050" (1.27 mm) pitch. The 41-position row spans approximately 52.1 mm, making this connector suitable for interfacing FPGA expansion ports, memory interfaces, or high-channel ADC buses between stacked carrier and mezzanine boards.
Why is polarization critical on an 82-pin dual-row connector such as the TFM-141-32-STL-D-A-P-TR?
The symmetric dual-row layout of an 82-pin connector looks identical from both orientations, creating a 50% probability of reversed insertion without a keying feature. The -P polarization tab physically blocks this reversed mating, which would otherwise connect 3.3 V or 1.8 V power pins to signal ground and cause immediate damage to ICs on both the carrier and mezzanine boards.
How does the TFM-141-32-STL-D-A-P-TR compare to using separate board connectors and standoffs for stacking two PCBs?
Using a single TFM-141-32-STL-D-A-P-TR mated pair replaces two-connector plus separate standoff configurations, reducing the total component count by at least 2 parts per stack. The integrated standoff function of the STL profile maintains inter-board spacing to within 0.1 mm tolerance across 82 contact positions, providing better mechanical repeatability than hand-placed plastic standoffs tightened to inconsistent torques.
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