TSM-127-03-S-DH-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-03-S-DH-A-P-TR is a 54-position, dual-row, 0.100" pitch surface mount terminal strip connector with polarized keying. Features 27 positions per row, gold-plated contacts, and tape-and-reel packaging for reliable board-to-board connections in automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- TSM-127-03-S-DH-A-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-127-03-S-DH-A-P-TR?
- 54 total positions in dual-row 0.100" (2.54 mm) pitch for high signal density
- Polarized keying (P suffix) prevents misalignment during mating and assembly
- Gold-plated contacts for low contact resistance and long-term reliability
- Surface mount termination compatible with standard reflow soldering processes
- Tape-and-reel (TR) packaging for high-volume automated pick-and-place assembly
- Dual-row configuration with 27 positions per row on standard 0.100" grid
What is TSM-127-03-S-DH-A-P-TR used for?
The TSM-127-03-S-DH-A-P-TR is used in high-density board-to-board and module-to-baseboard interconnect applications where 54 positions on a 0.100" pitch are needed with a keyed connector to prevent incorrect mating orientation. It is commonly specified in industrial embedded computing platforms, data acquisition modules, and modular I/O expansion cards where preventing connector reversal is critical for protecting downstream circuitry.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-127-03-S-DH-A-P-TR datasheet?
TSM-127-03-S-DH-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-127-03-S-DH-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the P suffix signify on the TSM-127-03-S-DH-A-P-TR and why is connector polarization important in multi-board systems?
The P suffix denotes a polarized connector variant that includes a mechanical key preventing the 54-position dual-row mating connector from being inserted in reverse orientation. In multi-board systems with 54 pins carrying mixed power, ground, and signal lines at up to 3A per contact, a reversed connection could destroy components or damage the PCB, making the polarized keying an essential safety feature.
How many positions does the TSM-127-03-S-DH-A-P-TR provide, and what pitch spacing does it use?
The TSM-127-03-S-DH-A-P-TR provides 54 total positions arranged in a dual-row layout with 27 positions per row on a 0.100" (2.54 mm) pitch. This standard pitch spacing maintains compatibility with 0.1" grid PCB layouts and allows routing of up to 54 independent signal or power lines through a single polarized SMT connector.
For automated PCB manufacturing, what packaging format does the TSM-127-03-S-DH-A-P-TR use and how does it help in production?
The TR suffix designates tape-and-reel packaging, which presents the 54-position 0.100" pitch polarized connector on a continuous feed reel compatible with automated pick-and-place machines. This packaging eliminates manual placement for the multi-pin connector body and supports high-volume SMT production with standard reflow profiles up to 260°C peak temperature.
How does the dual-row 54-position TSM-127-03-S-DH-A-P-TR compare to a single-row equivalent in terms of PCB length efficiency?
A single-row 54-position connector at 0.100" pitch would require approximately 5.4 inches of PCB edge length, while the dual-row TSM-127-03-S-DH-A-P-TR achieves the same 54 positions in half the length at roughly 2.7 inches by stacking 27 contacts per row. This dual-row approach significantly reduces the PCB space required for the connector footprint in length-constrained designs.
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