TSM-139-03-TL-DV-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-139-03-TL-DV-P-TR is a 78-position dual-row surface mount terminal strip with 2.54 mm (0.100") pitch for high-density board-to-board interconnects. Features top-loaded (TL) contacts and tape-and-reel packaging for automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TSM-139-03-TL-DV-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-139-03-TL-DV-P-TR?
- 78-position dual-row layout on 2.54 mm (0.100") pitch enabling high-density surface mount interconnection
- Top-loaded (TL) contact termination style for low-profile SMT applications with standard reflow compatibility
- Tape-and-reel (TR) packaging supporting automated pick-and-place assembly in high-volume production
- Dual-row (DV) configuration halving the connector footprint length compared to a single-row 78-position strip
- Gold-plated contacts for low insertion loss and corrosion resistance in industrial and instrumentation environments
What is TSM-139-03-TL-DV-P-TR used for?
The TSM-139-03-TL-DV-P-TR is designed for backplane interconnects, expansion card interfaces, and mezzanine module connections in industrial control, test and measurement, and communications equipment. Its 78-position dual-row format allows routing of a large number of data, power, and control signals across a compact SMT footprint. The tape-and-reel format makes it suitable for fully automated PCB assembly lines producing high volumes.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-139-03-TL-DV-P-TR datasheet?
TSM-139-03-TL-DV-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-139-03-TL-DV-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many contact positions does the TSM-139-03-TL-DV-P-TR provide, and how are they arranged?
The TSM-139-03-TL-DV-P-TR provides 78 contact positions arranged in a dual-row (DV) configuration on a 2.54 mm (0.100 inch) pitch. This dual-row arrangement reduces the connector's PCB footprint length by approximately half compared to a single-row 78-position strip, making it well suited for space-constrained backplane and mezzanine designs.
What does the TL designation in TSM-139-03-TL-DV-P-TR indicate about its termination style?
The TL designation stands for top-loaded termination, meaning the contacts are inserted or loaded from the top of the housing. This design allows for a low-profile surface mount configuration that sits flat against the PCB surface, enabling thin-profile assemblies and straightforward reflow soldering at standard SMT process temperatures.
For which automated assembly formats is the TSM-139-03-TL-DV-P-TR best suited?
The -TR suffix confirms the TSM-139-03-TL-DV-P-TR ships in tape-and-reel format, making it fully compatible with automated pick-and-place machines used in SMT production. This packaging supports reel quantities for high-volume runs, eliminating manual handling of the 78-position connector and ensuring consistent placement accuracy on the PCB land pattern.
How does the dual-row 0.100-inch pitch of the TSM-139-03-TL-DV-P-TR compare to alternative connector strategies for 78 signals?
Routing 78 signals through a single-row 0.100-inch strip would require a connector approximately 197 mm long, whereas the dual-row layout of the TSM-139-03-TL-DV-P-TR achieves the same 78 positions in roughly 99 mm, saving about 98 mm of PCB edge length. For backplane or expansion card applications constrained to a 100 mm board dimension, this dual-row approach is often the only viable SMT solution.
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