TSM-122-03-SM-DH-A-K-TR SAMTEC Connector (Other) In Stock
TSM-122-03-SM-DH-A-K-TR is a SAMTEC 44-position dual-row surface-mount terminal strip with 0.100 inch pitch, tape-and-reel packaging, gold-plated contacts, and keying features for reliable high-density board-to-board interconnections. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-122-03-SM-DH-A-K-TR?
- 44-position dual-row surface-mount terminal strip at 0.100 inch pitch provides high-circuit-count board interconnects in a standard SMT footprint
- Keying (K) feature prevents mis-mating, ensuring correct orientation during board assembly and field servicing
- Tape-and-reel (TR) packaging enables high-speed automated pick-and-place assembly for volume PCB production
- Gold-plated mating contacts deliver consistent low-resistance signal paths across the full 44-position interface
What is TSM-122-03-SM-DH-A-K-TR used for?
TSM-122-03-SM-DH-A-K-TR is used in high-density surface-mount board-to-board interconnect applications requiring 44 circuits at the standard 0.100 inch pitch. Its keying feature makes it ideal for embedded computing backplanes, industrial I/O expansion cards, and modular PLC systems where incorrect connector orientation would cause circuit damage. The tape-and-reel format supports automated assembly in high-volume manufacturing of communication equipment and industrial control boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-122-03-SM-DH-A-K-TR datasheet?
TSM-122-03-SM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-122-03-SM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the significance of the keying (K) designation in TSM-122-03-SM-DH-A-K-TR for a 44-position connector?
The keying (K) designation means TSM-122-03-SM-DH-A-K-TR incorporates a physical polarization feature that prevents the connector from being mated in the wrong orientation. For a 44-position dual-row interface, incorrect insertion would short or mis-route 44 circuits simultaneously, potentially damaging the PCB or connected system. The keying feature eliminates this risk during both automated assembly and manual field servicing.
How many circuits does TSM-122-03-SM-DH-A-K-TR provide and how does the dual-row layout affect board space compared to single-row alternatives?
TSM-122-03-SM-DH-A-K-TR provides 44 circuits arranged in a dual-row configuration at 0.100 inch pitch, with 22 contacts per row. This dual-row layout reduces the connector's linear PCB footprint by approximately 50% compared to a single-row 44-position connector at the same 0.100 inch pitch, making it substantially more space-efficient for high-circuit-count board interfaces.
For a modular industrial controller requiring 44-circuit board-to-board connectivity, why is TSM-122-03-SM-DH-A-K-TR preferable to a through-hole version?
TSM-122-03-SM-DH-A-K-TR's surface-mount design eliminates the need for 44 through-holes in the PCB, simplifying layer stackup design and enabling the connector to be placed on either side of the board. The SMT footprint is also compatible with standard automated reflow soldering, avoiding the separate wave-solder or hand-solder step that through-hole connectors require, reducing assembly cost and cycle time for modular industrial controller production.
Which procurement advantage does the tape-and-reel format of TSM-122-03-SM-DH-A-K-TR offer for contract electronics manufacturers?
The tape-and-reel (TR) format of TSM-122-03-SM-DH-A-K-TR allows contract electronics manufacturers to load the part directly into pick-and-place machine feeders without manual component staging or orientation. This is particularly valuable for high-volume builds where 44-position connectors must be placed on hundreds of boards per shift, as tape-and-reel feeding reduces per-unit placement time, minimizes mis-pick errors, and supports lights-out SMT line operation.
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