TSM-127-04-TL-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-04-TL-DH-A-K-TR is a 54-position dual-row 0.100" pitch surface mount terminal strip with top-loaded TL termination, gold-plated contacts, and tape-and-reel packaging for automated SMT assembly in board-to-board interconnect designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-127-04-TL-DH-A-K-TR?
- 54 positions in dual-row layout at 0.100" (2.54 mm) pitch for versatile board-to-board connectivity
- Top-loaded (TL) termination style for surface mount PCB placement
- Gold-plated contacts ensuring reliable low-resistance mating connections
- Tape-and-reel (TR) packaging supporting automated high-volume pick-and-place assembly
- DH profile for stable mating with compatible SAMTEC header connectors
- RoHS-compliant lead-free construction suitable for modern manufacturing processes
What is TSM-127-04-TL-DH-A-K-TR used for?
The TSM-127-04-TL-DH-A-K-TR is used in board-to-board signal distribution, backplane interconnect, and modular embedded system designs that require 54-position dual-row connectivity at 0.100" pitch. It is suited for industrial automation controllers, test and measurement systems, and communication equipment where reliable SMT terminal strips with top-loaded termination are needed.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-127-04-TL-DH-A-K-TR datasheet?
TSM-127-04-TL-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-127-04-TL-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the TL termination designation mean for the TSM-127-04-TL-DH-A-K-TR, and how does it affect PCB mounting?
The TL suffix denotes a top-loaded termination, meaning the connector's leads exit from the top of the housing for surface mount soldering. This 54-position dual-row connector at 0.100" pitch is placed flat on the PCB and soldered using standard SMT reflow processes, simplifying board assembly without through-hole routing.
How many signal connections does the 54-position TSM-127-04-TL-DH-A-K-TR provide in a typical backplane design?
With 54 total positions arranged in 2 rows at 0.100" (2.54 mm) pitch, the connector provides up to 54 independent signal or power pins. This makes it well-suited for backplane signal buses, multi-channel I/O expansion, or power distribution where high pin count in a compact SMT footprint is required.
When should engineers choose TSM-127-04-TL-DH-A-K-TR over a through-hole version of a similar SAMTEC strip?
The SMT design of TSM-127-04-TL-DH-A-K-TR is preferred when the PCB design avoids through-holes to maximize routing layers or reduce board thickness. The 54-position surface mount format is compatible with automated reflow and eliminates the secondary wave-soldering step required for through-hole connectors, reducing overall assembly cost.
What should procurement teams consider regarding lead time and stock for the TSM-127-04-TL-DH-A-K-TR?
This connector is available in tape-and-reel (TR) packaging for production runs. Procurement teams should verify current stock at authorized SAMTEC distributors, as specialty 54-position dual-row SMT strips may have lead times of 4 to 10 weeks when not held in local inventory. Confirming RoHS compliance documentation at order placement is recommended.
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