TSM-128-02-LM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-128-02-LM-DH-A-K-TR is a 56-position, 0.100" (2.54 mm) pitch dual-row surface mount terminal strip with low-mount (LM) profile, alignment key (K), and tape-and-reel packaging, designed for reliable, keyed PCB signal interconnects in industrial and computing applications.
- 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-128-02-LM-DH-A-K-TR?
- 56-position dual-row surface mount terminal strip with 0.100" (2.54 mm) pitch
- Low-mount (LM) profile reduces connector stacking height for space-constrained PCB assemblies
- Alignment key (K) feature prevents misalignment and incorrect mating during board assembly
- Gold-plated contacts providing low contact resistance and high mating-cycle reliability
- Tape-and-reel (TR) packaging for automated high-volume SMT pick-and-place manufacturing
What is TSM-128-02-LM-DH-A-K-TR used for?
The TSM-128-02-LM-DH-A-K-TR is suited for embedded computing modules, industrial control boards, and telecom backplane assemblies where a 56-pin 0.100" pitch low-profile terminal strip with anti-misalignment keying is needed. Its tape-and-reel packaging and low-mount design make it a popular choice for high-volume SMT production lines in consumer electronics, data center hardware, and automation equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-128-02-LM-DH-A-K-TR datasheet?
TSM-128-02-LM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-128-02-LM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the position count and pitch of the TSM-128-02-LM-DH-A-K-TR, and how does the dual-row layout help with signal density?
The TSM-128-02-LM-DH-A-K-TR offers 56 positions in a dual-row configuration with 0.100" (2.54 mm) pitch, placing 28 contacts per row. This dual-row layout doubles signal density compared to a single-row strip at the same pitch, optimizing PCB space for multi-signal applications.
How does the alignment key (K) option on the TSM-128-02-LM-DH-A-K-TR prevent assembly errors?
The K (alignment key) designation adds a mechanical polarization feature that physically blocks incorrect connector orientation, ensuring all 56 contacts mate correctly every time. This reduces rework and protects sensitive PCB signal traces during assembly in industrial environments with operating temperatures from -55°C to +125°C.
Which production environments benefit most from the tape-and-reel packaging of the TSM-128-02-LM-DH-A-K-TR?
High-volume PCB manufacturing lines using automated SMT pick-and-place equipment benefit most, since the TR (tape-and-reel) format enables continuous feeding of connectors at rates compatible with modern assembly machines, supporting reel quantities typically of 500 or 1,000 pieces for industrial or computing board production.
When should an engineer choose the TSM-128-02-LM-DH-A-K-TR over a standard-height version of the same connector family?
The LM (low-mount) variant should be chosen when vertical PCB clearance is limited, such as in slim form-factor modules or tightly stacked card assemblies where a reduced connector height keeps the total board stack under the enclosure height budget, while still providing full 56-pin 2.54 mm pitch connectivity.
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