TSM-139-02-STL-DV-P-TR SAMTEC Connector (Other) In Stock
The SAMTEC TSM-139-02-STL-DV-P-TR is a 78-position dual-row surface-mount terminal strip with 0.100-inch (2.54 mm) pitch, featuring solder tail contacts suitable for high-density PCB interconnects. It supports tape-and-reel automated assembly and accepts standard 0.100-inch mating headers. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TSM-139-02-STL-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-139-02-STL-DV-P-TR?
- 78 positions in dual-row 0.100-inch (2.54 mm) pitch provides high-density SMT header connectivity in a compact footprint
- STL solder tail termination enables reliable reflow solder joints compatible with automated SMT production lines
- Tape-and-reel (TR) packaging supports high-volume pick-and-place assembly without manual kitting steps
What is TSM-139-02-STL-DV-P-TR used for?
The TSM-139-02-STL-DV-P-TR is used in backplane and daughter-card interconnect systems, test fixtures, and industrial control PCBs where 78 signals must be routed through a standard 0.100-inch pitch header interface. Its dual-row SMT configuration reduces the board area needed compared to single-row alternatives while remaining compatible with widely available 0.100-inch pitch mating connectors. The tape-and-reel format makes it practical for high-volume production of communication modules and embedded computing boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-139-02-STL-DV-P-TR datasheet?
TSM-139-02-STL-DV-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-139-02-STL-DV-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 0.100-inch pitch of the TSM-139-02-STL-DV-P-TR affect compatibility with standard mating headers?
The 0.100-inch (2.54 mm) pitch is the industry-standard spacing for through-hole and surface-mount headers, ensuring the TSM-139-02-STL-DV-P-TR mates with any conforming 0.100-inch pitch male header or pin strip across all major connector manufacturers. With 78 positions in a dual-row layout, it provides 39 pins per row and can carry signals at up to 3 A per contact in typical PCB backplane applications.
For a high-volume industrial PCB production run, what assembly advantages does the TSM-139-02-STL-DV-P-TR offer?
The TR suffix confirms the TSM-139-02-STL-DV-P-TR ships in tape-and-reel format, directly compatible with automated SMT pick-and-place machines. The STL solder tail termination allows single-pass reflow assembly alongside other SMT components on the same PCB, eliminating the separate wave-soldering or hand-soldering step required for through-hole connectors and reducing assembly cycle time per board.
When would an engineer select the TSM-139-02-STL-DV-P-TR over a through-hole terminal strip for a backplane design?
An engineer would choose the TSM-139-02-STL-DV-P-TR surface-mount version when the PCB design uses a no-through-hole process or when the backplane thickness is too thin for reliable plated-through-hole drill registration at 0.100-inch pitch with 78 positions. SMT placement also allows the connector to be positioned on either side of the PCB without additional tooling, enabling more flexible signal routing in 6-layer to 10-layer backplane stackups.
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