TSM-138-04-STL-DV-P-TR SAMTEC Connector (Other) In Stock
TSM-138-04-STL-DV-P-TR is a SAMTEC 76-position dual-row surface mount terminal strip with 0.100" (2.54 mm) pitch and a short tail length variant. It provides reliable SMT pin connections for high-density 76-signal board-to-board and module interfaces. Available from authorized distributors with competitive pricing and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- TSM-138-04-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-138-04-STL-DV-P-TR?
- 76-position dual-row layout at 0.100" (2.54 mm) pitch enables straightforward integration with standard-grid PCB designs
- Short tail (STL) SMT termination reduces solder joint height and improves coplanarity across all 76 pins during reflow assembly
- Dual-row configuration with polarization options ensures correct orientation and prevents misinsertion in high-pin-count assemblies
What is TSM-138-04-STL-DV-P-TR used for?
TSM-138-04-STL-DV-P-TR suits industrial backplane interfaces, embedded computing module connectors, and test board signal routing where 76 SMT pins at a 0.100" pitch are required. The short tail variant is chosen when PCB standoff height is restricted or when minimizing solder bridging risk in dense board layouts is a priority in automated SMT assembly lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-138-04-STL-DV-P-TR datasheet?
TSM-138-04-STL-DV-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-138-04-STL-DV-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the short tail (STL) termination of TSM-138-04-STL-DV-P-TR improve SMT assembly yield?
The STL (short tail) termination on TSM-138-04-STL-DV-P-TR reduces the pin length protruding through or sitting on the PCB pad, helping maintain coplanarity within 0.1 mm or better across all 76 positions. This tighter coplanarity tolerance lowers the risk of open solder joints caused by tall pins lifting off pads during reflow, which is especially important when assembling high-pin-count 0.100" pitch dual-row strips in automated SMT lines.
When designing a 76-signal backplane module, why might TSM-138-04-STL-DV-P-TR be selected over a 0.050" pitch alternative?
TSM-138-04-STL-DV-P-TR uses a 0.100" (2.54 mm) pitch, which provides wider pad-to-pad spacing and simplified PCB routing compared to 0.050" pitch connectors. At 0.100" pitch, inner-layer routing between rows is easier, solder bridging risk is lower, and hand-soldering or rework of all 76 pins is more practical. These advantages make the 0.100" TSM series preferable when signal density requirements do not demand the finer 0.050" pitch.
How do TSM-138-04-STL-DV-P-TR and TSM-138-03-TL-DV-P-TR differ for the same 76-position dual-row interface?
Both TSM-138-04-STL-DV-P-TR and TSM-138-03-TL-DV-P-TR are 76-position, 0.100" pitch dual-row surface mount terminal strips, but they differ in tail length. The -04-STL variant has a shorter tail that reduces board profile and improves coplanarity, while the -03-TL variant provides a longer tail suited for applications needing deeper solder fillet formation or slightly higher board standoff. Selecting between them depends on PCB thickness and the target solder joint profile in the application.
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