TSM-123-03-TL-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-123-03-TL-DH-A-K-TR is a 46-position dual-row surface mount terminal strip with 2.54 mm (0.100 inch) pitch and through-hole locking (TL) posts for enhanced mechanical retention. Provides 23 pins per row in a robust SMT footprint for industrial and embedded PCB applications. Available from stock with 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
What are the key features of TSM-123-03-TL-DH-A-K-TR?
- 46-position dual-row terminal strip with 2.54 mm (0.100 inch) pitch and 23 pins per row for high-density SMT board-to-board signal connections
- Through-hole locking (TL) posts provide additional mechanical retention beyond standard SMT solder joints, improving robustness in high-vibration environments
- Surface mount terminal strip design compatible with standard 0.100 inch pitch mating socket strips for versatile board-to-board connector system assembly
What is TSM-123-03-TL-DH-A-K-TR used for?
The TSM-123-03-TL-DH-A-K-TR 46-position terminal strip is designed for high-density board-to-board interconnect in industrial automation controllers, embedded computing platforms, and test and measurement systems where both SMT soldering and through-hole mechanical locking are required for reliability. Its 2.54 mm pitch dual-row configuration accommodates mixed signal, power, and communication bus connections in backplane and daughter-card applications. This connector is particularly suited for systems subject to mechanical stress or vibration, where the TL locking posts ensure connector retention that pure SMT solder joints alone may not provide.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-123-03-TL-DH-A-K-TR datasheet?
TSM-123-03-TL-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-123-03-TL-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What advantage do the through-hole locking posts on TSM-123-03-TL-DH-A-K-TR provide over standard SMT-only terminal strips?
The through-hole locking (TL) posts on TSM-123-03-TL-DH-A-K-TR pass through the PCB and are soldered on the opposite side, adding mechanical retention beyond the SMT solder joints that attach the 46 signal contacts. This dual-solder attachment resists lateral shear forces caused by repeated mating and unmating cycles or vibration in industrial and automotive applications, preventing the connector from lifting or delaminating from the board even after hundreds of insertion cycles.
For an industrial automation backplane with 46 signals at 0.100 inch pitch, how does TSM-123-03-TL-DH-A-K-TR simplify the design?
Using a single 46-position TSM-123-03-TL-DH-A-K-TR terminal strip consolidates all 46 backplane signals into one 2.54 mm pitch dual-row connector, eliminating the need for 2 to 3 smaller connectors and simplifying PCB routing of GPIO, communication buses, and power rails. The 23 pins per row arrangement aligns with standard backplane card edge connector patterns, reducing wiring complexity in PLC, motion controller, and industrial Ethernet switch PCB designs.
How does TSM-123-03-TL-DH-A-K-TR differ from the TSM-124-02-L-DH-A-K-TR in pin count and locking for PCB selection?
The TSM-123-03-TL-DH-A-K-TR has 46 positions with through-hole locking (TL) posts for enhanced mechanical retention, while the TSM-124-02-L-DH-A-K-TR has 48 positions without locking posts at the same 2.54 mm (0.100 inch) pitch. Engineers select the TSM-123 variant when 46 signal contacts with mechanically secured locking are needed in vibration-prone environments, and the TSM-124 when 48 contacts are required and standard SMT solder retention is sufficient for the application.
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