TSM-138-04-G-DV-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-138-04-G-DV-P-TR is a 76-position dual-row 0.100" (2.54 mm) pitch surface mount terminal strip with gold-plated contacts and polarization feature. Supports SMT straddle-mount board-edge connections for high pin-count interfaces in a tape-and-reel format. In stock globally with worldwide shipping for fast delivery.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- TSM-138-04-G-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-G-DV-P-TR?
- 76-position dual-row 0.100" (2.54 mm) pitch SMT terminal strip delivering 38 contacts per row for high pin-count board-edge interconnects
- Gold-plated contact finish providing low contact resistance and extended mating cycle durability compared to standard tin-finished alternatives
- Polarized body with straddle-mount SMT design eliminating through-hole drilling while preventing incorrect connector orientation during assembly
What is TSM-138-04-G-DV-P-TR used for?
TSM-138-04-G-DV-P-TR is suited for backplane and mezzanine card edge connections in embedded computing and FPGA development platforms where 76 signals must be routed through a compact 0.100" pitch dual-row strip. Its gold contacts and polarization make it a reliable choice for industrial automation controllers and communications line cards requiring low-resistance, mistake-proof board-to-board interfaces. The tape-and-reel packaging supports automated SMT assembly for medium-to-high-volume production of networking and data acquisition hardware.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-138-04-G-DV-P-TR datasheet?
TSM-138-04-G-DV-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-138-04-G-DV-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and rows does TSM-138-04-G-DV-P-TR have, and what pitch separates the contacts?
TSM-138-04-G-DV-P-TR has 76 positions arranged in a dual-row layout with 38 contacts per row at a 0.100" (2.54 mm) pitch. The dual-row 2.54 mm spacing allows the strip to carry 76 independent signals or mixed power and signal lines across a board-edge interface spanning approximately 1.9 inches in length.
How does the gold contact finish on TSM-138-04-G-DV-P-TR compare to tin-finished variants for high-cycle applications?
Gold-plated contacts on TSM-138-04-G-DV-P-TR maintain contact resistance below 20 milliohms after hundreds of mating cycles because gold resists oxidation and fretting corrosion that degrades tin contacts over time. For test fixtures or field-serviceable modules that mate and unmate more than 50 times over the product lifetime, the gold finish provides measurably more reliable electrical continuity than standard matte tin.
What board designs benefit from TSM-138-04-G-DV-P-TR's straddle-mount SMT configuration?
Straddle-mount SMT boards benefit because the connector mounts at the PCB edge without through-hole vias, preserving ground plane continuity beneath the connector footprint. FPGA evaluation boards, single-board computers, and communications interface cards with 76-pin parallel buses or combined power-plus-signal headers use this straddle-mount format to maintain signal integrity and simplify multilayer PCB stackup routing.
Is TSM-138-04-G-DV-P-TR appropriate as an alternative to a pin header in a backplane design requiring mistake-proof mating?
Yes, the polarized body of TSM-138-04-G-DV-P-TR physically prevents reversed insertion, making it preferable to unpolarized pin headers in backplane assemblies where field technicians plug in daughtercards. The SMT straddle-mount format also allows the 76-position strip to align precisely to the board edge without off-axis mating errors that can bend 0.100" through-hole pins during rough field insertions.
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