TSM-128-04-TL-DH-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-128-04-TL-DH-A-P-TR is a 56-position dual-row surface-mount terminal strip on 0.100" (2.54 mm) pitch, featuring through-hole locating pegs, gold-plated contacts, and tape-and-reel packaging optimized for high-volume automated board assembly in dense interconnect designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-128-04-TL-DH-A-P-TR?
- 56 total contact positions in dual-row (DH) layout on 0.100" (2.54 mm) pitch
- Gold-plated (-P) contacts providing low contact resistance and extended mating cycle durability
- Tape-and-reel (-TR) packaging for automated high-volume SMT pick-and-place assembly
- Through-hole locating pegs (TL) for accurate PCB alignment and reflow solder stability
- RoHS-compliant design suitable for industrial and commercial electronics applications
What is TSM-128-04-TL-DH-A-P-TR used for?
The TSM-128-04-TL-DH-A-P-TR is used in dense board-to-board and daughtercard interconnect designs found in embedded computing modules, industrial control systems, and telecom infrastructure equipment. Its 56-pin dual-row configuration with locating pegs and gold-plated contacts ensures repeatable electrical performance across many mating cycles, making it a reliable choice for backplane assemblies and modular system architectures.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-128-04-TL-DH-A-P-TR datasheet?
TSM-128-04-TL-DH-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-128-04-TL-DH-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pin count and pitch does TSM-128-04-TL-DH-A-P-TR offer for dual-row interconnect designs?
TSM-128-04-TL-DH-A-P-TR provides 56 contact positions in 2 rows on a standard 0.100 inch (2.54 mm) pitch, giving engineers a high-density interconnect option for backplane, daughtercard, and module-to-baseboard designs on standard PCB manufacturing tolerances.
How do through-hole locating pegs (TL) on this SAMTEC terminal strip improve SMT soldering quality?
Through-hole locating pegs mechanically anchor the 56-pin connector body to the PCB before and during reflow soldering at temperatures up to 260°C, minimizing drift and ensuring all 56 contacts land within pad tolerances, which reduces rework rates on automated assembly lines.
When should a procurement engineer choose TSM-128-04-TL-DH-A-P-TR over a comparable tin-plated variant?
Gold-plated (-P) contacts are preferred over tin when the design requires more than 50 mating cycles, low and stable contact resistance below 20 mΩ, or operation in humid or mildly corrosive environments, making the gold-plated TSM-128-04-TL-DH-A-P-TR the correct choice for modular industrial or test-equipment applications.
What tape-and-reel specifications make TSM-128-04-TL-DH-A-P-TR suitable for high-volume automated assembly?
The -TR suffix indicates standard EIA-481 tape-and-reel packaging compatible with 24 mm or 32 mm carrier tape feeders on pick-and-place machines. Volume orders typically come in reels of 500 pieces, reducing per-unit setup overhead for production runs exceeding 1,000 boards.
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