TFM-139-12-S-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-139-12-S-D-A-P-TR is a high-reliability Tiger Eye terminal strip with 78 positions in a dual-row surface-mount configuration and .050" (1.27 mm) pitch, supporting dense board-to-board signal interconnects. It features gold-plated Tiger Eye contacts with superior retention and is supplied on tape-and-reel for automated assembly. Available from authorized distributors worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFM-139-12-S-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 TFM-139-12-S-D-A-P-TR?
- 78-position dual-row (D) terminal strip at .050" (1.27 mm) pitch enables ultra-high-density signal routing in compact SMD board-to-board assemblies
- Tiger Eye contact technology delivers elevated normal force and wiping action for reliable low-resistance connections across all 78 positions through extended mating cycles
- Tape-and-reel (TR) packaging and surface-mount (S) termination style support high-volume automated PCB assembly with standard pick-and-place equipment
What is TFM-139-12-S-D-A-P-TR used for?
The TFM-139-12-S-D-A-P-TR is designed for high-density board-to-board and mezzanine connector applications in computing, networking, and industrial control systems requiring 78 signal positions at .050" pitch. Its surface-mount termination and tape-and-reel packaging make it well suited for automated high-volume production of server backplanes, FPGA carrier boards, and communication module interconnects. The Tiger Eye contact design ensures reliable performance across repeated mating cycles in demanding environments where connector integrity is critical.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-139-12-S-D-A-P-TR datasheet?
TFM-139-12-S-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-139-12-S-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal positions does TFM-139-12-S-D-A-P-TR provide and how are they arranged?
The TFM-139-12-S-D-A-P-TR provides 78 signal positions arranged in a dual-row layout at .050" (1.27 mm) pitch, with 39 contacts per row. This high-density configuration allows engineers to route 78 signals across a compact PCB footprint, making it ideal for FPGA carrier boards, backplane interfaces, and mezzanine assemblies where signal count per unit length is maximized.
What assembly method does TFM-139-12-S-D-A-P-TR support and how does tape-and-reel packaging help production?
TFM-139-12-S-D-A-P-TR uses surface-mount (S) termination and is supplied in tape-and-reel (TR) format, enabling fully automated PCB assembly with standard pick-and-place equipment. Tape-and-reel packaging maintains consistent 78-position connector orientation and minimizes handling errors during high-volume production runs, reducing placement cycle time and improving assembly yield for server and networking hardware manufacturers.
How does Tiger Eye contact technology in TFM-139-12-S-D-A-P-TR compare to standard stamped contact connectors?
SAMTEC Tiger Eye contacts use a machined socket design that applies higher normal force per pin than typical stamped contacts, resulting in contact resistance typically below 20 milliohms per pin across all 78 positions. The wiping action during engagement also clears surface oxidation, maintaining reliable signal integrity after extended storage or multiple mating cycles in industrial and server-grade interconnect applications.
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About SAMTEC
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