TSM-127-02-LM-DH-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-02-LM-DH-A-P-TR is a 54-position, dual-row, 0.100" (2.54 mm) pitch surface mount terminal strip with an LM lead style, providing compact and reliable PCB board-to-board and module signal interconnects for industrial and embedded computing applications.
- 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-127-02-LM-DH-A-P-TR?
- 54 positions in a dual-row 0.100" (2.54 mm) pitch layout for high-density mid-range signal routing
- LM (low-profile male) lead style provides a compact solder joint profile suited for height-constrained designs
- Surface mount termination compatible with standard SMT reflow assembly lines
- Tape-and-reel (TR) packaging enables automated pick-and-place manufacturing at high volume
- Gold-plated dual-row contacts maintain low contact resistance over many mating cycles
What is TSM-127-02-LM-DH-A-P-TR used for?
TSM-127-02-LM-DH-A-P-TR is suited for board-to-board and module-to-motherboard interconnections in embedded computing, industrial process control, and communications equipment. The 54-position dual-row layout and low-profile LM lead style make it particularly effective for height-constrained PCB stacking designs where signal density and compact form factor are both priorities.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-127-02-LM-DH-A-P-TR datasheet?
TSM-127-02-LM-DH-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-127-02-LM-DH-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal contacts does TSM-127-02-LM-DH-A-P-TR provide, and how does dual-row placement benefit space-constrained designs?
TSM-127-02-LM-DH-A-P-TR provides 54 signal contacts in a dual-row layout at 0.100" (2.54 mm) pitch, with 27 contacts per row. The dual-row arrangement reduces the connector's board length to approximately 2.7 inches, roughly half the PCB length that a single-row 54-pin strip would require at the same pitch.
What does the LM lead style mean for PCB stacking height when using TSM-127-02-LM-DH-A-P-TR?
The LM (low-profile male) lead style on TSM-127-02-LM-DH-A-P-TR refers to a reduced-height contact design that minimizes the vertical clearance required above the PCB surface. This allows designers to reduce the stack height in board-to-board assemblies, saving several millimeters of vertical space compared to standard-profile lead styles on similar 54-pin connectors.
Can TSM-127-02-LM-DH-A-P-TR be reliably used in industrial automation equipment subject to mechanical vibration?
Yes. SAMTEC TSM series connectors are rated for operating temperatures from -55°C to 125°C, and their SMT termination provides solder joints mechanically anchored to the PCB across all 54 positions. In vibration-intensive industrial environments, designers may add adhesive underfill or conformal coating to further secure the connector and maintain signal integrity.
How should procurement teams evaluate lifecycle risk when designing TSM-127-02-LM-DH-A-P-TR into a long-lifecycle industrial product?
Procurement teams should confirm the active lifecycle status of TSM-127-02-LM-DH-A-P-TR with SAMTEC-authorized distributors and review SAMTEC product change notifications. For products with 10-year or longer production commitments, building a safety stock of 6 to 12 months of connector supply and identifying a qualified alternate source at 0.100" pitch can reduce the risk of last-time-buy situations.
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