TSM-127-03-S-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-03-S-DH-A-K-TR is a 54-position surface-mount terminal strip with 0.100" (2.54 mm) pitch in a dual-row configuration with keyed and angle options. Packaged in tape-and-reel format for automated assembly, this connector provides high-density polarized interconnects for industrial and embedded PCB designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- TSM-127-03-S-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-127-03-S-DH-A-K-TR?
- 54-position dual-row terminal strip at 0.100" (2.54 mm) pitch for standard PCB grid compatibility
- Keyed (-K) variant preventing reverse insertion and protecting circuits from incorrect mating
- Surface-mount termination enabling standard lead-free SMT reflow soldering up to 260°C
- Tape-and-reel (-TR) packaging optimized for high-speed automated pick-and-place manufacturing
- 27 positions per row in a dual-row layout for high-density signal routing in compact PCB designs
What is TSM-127-03-S-DH-A-K-TR used for?
The TSM-127-03-S-DH-A-K-TR is designed for industrial control systems, embedded computing modules, and communications equipment requiring reliable 54-pin polarized surface-mount connections at 0.100" pitch. Its keyed design and angled configuration facilitate correct-orientation mating in field-serviceable products, while the tape-and-reel packaging supports high-volume automated PCB production in backplane interconnect and module expansion card applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-127-03-S-DH-A-K-TR datasheet?
TSM-127-03-S-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-127-03-S-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the significance of the -A and -K options in the TSM-127-03-S-DH-A-K-TR part number?
The -A suffix indicates an angled or right-angle termination variant, and -K denotes a keyed connector that prevents reverse mating. Together, these options allow the 54-position terminal strip at 2.54 mm pitch to be used in applications where the mating connector must be approached from a specific direction and polarity protection is essential, such as field-replaceable module connectors.
How many pins per row does the TSM-127-03-S-DH-A-K-TR provide, and what is the total position count?
The TSM-127-03-S-DH-A-K-TR provides 27 pins per row across its 2 dual rows, for a total of 54 positions at 0.100" (2.54 mm) pitch. This high pin count enables routing of 27 differential pairs or 54 single-ended signals within a single compact connector footprint, reducing cable or board complexity.
What reflow temperature profile is supported for soldering the TSM-127-03-S-DH-A-K-TR during PCB assembly?
As a surface-mount connector, the TSM-127-03-S-DH-A-K-TR is compatible with standard lead-free SMT reflow profiles with peak temperatures up to 260°C for up to 10 seconds, per JEDEC J-STD-020 guidelines. This makes it fully compatible with RoHS-compliant Sn-Ag-Cu solder paste used in modern high-volume PCB assembly.
When should designers prefer the tape-and-reel version (-TR) of this 54-position SAMTEC connector over tube packaging?
The -TR tape-and-reel variant is preferred for production volumes exceeding several hundred boards per run, where automated pick-and-place machines handle component placement. Tape-and-reel reduces per-unit handling cost and minimizes placement errors compared to tube packaging, making it the standard choice for contract manufacturing of industrial and telecommunications PCBs.
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