TSM-120-03-H-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-120-03-H-DH-A-K-TR is a 40-position, 2.54 mm pitch surface mount terminal strip with dual-row, high-profile SMT design. Rated for 3 A per contact at 125 V AC/DC, it offers reliable board-to-board connectivity. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TSM-120-03-H-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40 positions in a dual-row, 2.54 mm (0.100 inch) pitch SMT layout for compact board-to-board connectivity
- 3 A / 125 V AC/DC per contact rating for robust signal and low-power distribution
- High-profile SMT termination with key (A-K) option for polarized, mis-insertion-proof mating
Applications
TSM-120-03-H-DH-A-K-TR is well-suited for prototyping boards, test fixtures, and modular PCB stacking applications where 40 dual-row contacts are needed on a 2.54 mm grid. Its keyed high-profile SMT body prevents incorrect orientation during assembly, making it ideal for production line modules and backplane interconnects.
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
What current and voltage does each contact in the TSM-120-03-H-DH-A-K-TR support?
Each contact is rated for 3 A continuous current and 125 V AC/DC, making the connector suitable for signal distribution and low-power bus routing on compact surface-mount PCBs with a 2.54 mm pitch.
How does the keyed (A-K) option on TSM-120-03-H-DH-A-K-TR prevent assembly errors in production?
The A-K keying feature adds a mechanical polarization key that blocks mis-insertion, ensuring the 40-position dual-row connector seats in the correct orientation every time, which reduces rework rates on automated pick-and-place SMT assembly lines.
In which PCB stacking or modular system designs is the TSM-120-03-H-DH-A-K-TR a good choice?
This connector fits backplane modules, daughtercard assemblies, and test-fixture boards requiring 40 SMT contacts on a 0.100 inch (2.54 mm) grid. Its dual-row H-profile keeps the mated stack height low while providing 3 A per pin for power rails up to 125 V.
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