TSM-129-04-TM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-129-04-TM-DH-A-K-TR is a 58-position dual-row surface mount terminal strip with 0.100 inch (2.54mm) pitch. It features a through-mount TM termination style, dual-height body, polarization key, and tape-and-reel packaging for reliable high-density PCB interconnect in industrial and embedded systems.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 58
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-129-04-TM-DH-A-K-TR?
- 58-position dual-row layout at 0.100 inch (2.54mm) pitch supporting high-density SMT board interconnect
- Through-mount (TM) termination style providing additional mechanical anchoring for the surface mount strip
- Dual-height (DH) design offering increased board-to-board clearance for stacked PCB assemblies
- Polarization key (K) feature preventing incorrect mating orientation and protecting signal integrity
- Tape-and-reel (TR) packaging enabling automated high-volume pick-and-place SMT assembly
What is TSM-129-04-TM-DH-A-K-TR used for?
The TSM-129-04-TM-DH-A-K-TR is designed for embedded computing, industrial automation, and defense electronics requiring 58-position signal distribution with secure, keyed mating. The polarization key prevents incorrect connector orientation, making it particularly valuable in multi-board systems where wrong-way mating would damage sensitive circuitry. Tape-and-reel packaging supports efficient high-volume production line integration with standard SMT assembly equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-129-04-TM-DH-A-K-TR datasheet?
TSM-129-04-TM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-129-04-TM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the polarization key (K) in TSM-129-04-TM-DH-A-K-TR prevent, and why is it critical in multi-board systems?
The K suffix in TSM-129-04-TM-DH-A-K-TR indicates a polarization key feature that physically prevents the connector from being mated in the wrong orientation. In multi-board systems with 58 signal positions at 0.100 inch pitch, incorrect mating could apply voltage to wrong pins, potentially damaging sensitive ICs or logic circuits. The keying feature eliminates this risk entirely, which is especially important in field-serviceable assemblies or designs with tight voltage tolerances below 5V.
How does the through-mount (TM) style affect the mechanical stability of TSM-129-04-TM-DH-A-K-TR compared to standard SMT strips?
The TM (through-mount) termination style on TSM-129-04-TM-DH-A-K-TR extends through the PCB and provides mechanical anchoring via solder joints on both the top and bottom of the board. This dramatically improves pull-out and shear strength compared to standard SMT-only termination, making the 58-position strip suitable for applications subject to vibration or mechanical loads, such as automotive ECUs or ruggedized industrial controllers.
How should a procurement engineer compare TSM-129-04-TM-DH-A-K-TR with the TSM-129-04-H-DH-A-K-TR variant when planning a BOM?
The main difference between TSM-129-04-TM-DH-A-K-TR and TSM-129-04-H-DH-A-K-TR is the termination style: TM (through-mount) versus H (horizontal SMT). Both offer 58 positions at 0.100 inch pitch with dual-height body and polarization key. Choose TM when mechanical retention strength or dual-side soldering is required; choose H when a fully SMT process without board drilling is preferred. Lead times and pricing are typically similar within the SAMTEC TSM family.
What temperature range should designers verify for TSM-129-04-TM-DH-A-K-TR in high-temperature industrial environments?
SAMTEC TSM series terminal strips are typically rated for operating temperatures from -55°C to +125°C, suitable for industrial and automotive environments. For TSM-129-04-TM-DH-A-K-TR, designers should confirm the specific rating in the SAMTEC TSM series datasheet, verify that the PCB laminate and adjacent component temperature ratings are compatible, and ensure the 0.100 inch pitch contact system maintains specified contact resistance across the full thermal cycle range expected in the end application.
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