TSM-123-01-SS-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-123-01-SS-DH-A-K-TR is a 46-position dual-row surface mount terminal strip with 2.54 mm (0.100 inch) pitch and stainless steel contacts. Dual-height body suits stacked PCB and mezzanine assemblies requiring robust mechanical retention. In stock with tape-and-reel packaging for automated SMT assembly and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 46-position dual-row layout on 2.54 mm (0.100 inch) pitch offering high pin count in a standard grid-compatible surface mount terminal strip
- Stainless steel (-SS) contacts providing superior corrosion resistance and mechanical durability over standard copper alloy contacts in harsh environments
- Dual-height (-DH) body accommodating mating connectors with varying standoff requirements on stacked PCB and mezzanine card assemblies
- Tape-and-reel (-TR) packaging enabling seamless integration into high-speed automated SMT pick-and-place and reflow soldering processes
- RoHS-compliant construction with high-reliability (-K) contact option for extended service life in industrial and commercial applications
Applications
The TSM-123-01-SS-DH-A-K-TR is used in industrial control modules, embedded single-board computers, and communication backplanes that need 46-position dual-row connectivity at the standard 2.54 mm pitch via surface mount reflow soldering. The stainless steel contact material makes it well suited for environments where moisture, salt spray, or solvent exposure could degrade standard copper-alloy contacts. Its tape-and-reel availability supports high-volume automated assembly on production lines building industrial gateway or data acquisition boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total pins does the dual-row layout of the TSM-123-01-SS-DH-A-K-TR provide, and what is the overall footprint length at 2.54 mm pitch?
The TSM-123-01-SS-DH-A-K-TR provides 46 pins arranged in 2 rows of 23 columns at 2.54 mm (0.100 inch) pitch. The row of 23 columns spans approximately 55.9 mm in length on the PCB, and the two rows are separated by 2.54 mm center-to-center, requiring a land pattern roughly 55.9 mm long by 2.54 mm wide to meet IPC-7351 SMT pad recommendations.
Why choose stainless steel contacts in the TSM-123-01-SS-DH-A-K-TR over standard phosphor bronze contacts for an outdoor industrial sensor gateway?
Stainless steel contacts maintain corrosion resistance in outdoor environments with humidity above 85% RH and exposure to industrial solvents, salt fog, or condensation that would oxidize phosphor bronze contacts within months. For an outdoor industrial sensor gateway enclosure running 24 hours a day at temperatures from -40°C to +85°C, stainless steel contacts provide a service life measured in years rather than months, reducing field connector maintenance costs significantly.
What does the dual-height (-DH) designation mean for the TSM-123-01-SS-DH-A-K-TR, and in which stacked PCB applications does it matter?
The -DH dual-height designation means the connector body has an increased height dimension designed to accept mating headers that extend above the standard profile, accommodating larger inter-board standoff gaps in stacked PCB assemblies. In server blade or test equipment designs where a second PCB must clear tall components (capacitors, inductors, or heat sinks over 5 mm tall) on the primary board, the dual-height connector body maintains mating alignment without requiring custom spacers or risers.
How does the tape-and-reel packaging of the TSM-123-01-SS-DH-A-K-TR reduce assembly errors in high-volume SMT production?
Tape-and-reel packaging feeds the 46-position TSM-123-01-SS-DH-A-K-TR strip sequentially to automated pick-and-place machines at reflow temperatures up to 260°C peak, eliminating the manual tray handling that introduces placement orientation errors on dual-row connectors. For production runs of 10,000 or more boards per month, reel-fed SMT placement reduces connector misalignment defect rates to under 100 ppm compared to tray-loaded manual placement, lowering rework costs substantially.
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