STMM-123-02-T-D-SM-K-TR SAMTEC Connector (Other) In Stock
The STMM-123-02-T-D-SM-K-TR is a SAMTEC 46-position dual-row shrouded terminal strip with 2.00 mm pitch, surface-mount termination, polarizing key, and tape-and-reel packaging for automated assembly. It provides reliable cable-to-board connectivity in compact industrial and computing systems with worldwide stock availability.
- 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 STMM-123-02-T-D-SM-K-TR?
- 46-position dual-row shrouded cable mate connector at 2.00 mm pitch with surface-mount termination for high-density reflow-compatible wire-to-board connections
- Polarizing key (K) feature in the shroud preventing misorientation during harness mating across all 46 positions
- Tape-and-reel (TR) packaging enabling automated SMT pick-and-place assembly for high-volume manufacturing efficiency
What is STMM-123-02-T-D-SM-K-TR used for?
The STMM-123-02-T-D-SM-K-TR is designed for high-density cable-to-board interconnects in industrial automation controllers, embedded computing platforms, and communication equipment where a 46-position dual-row 2.00 mm pitch shrouded connector with surface-mount termination is needed. Its keyed polarizing shroud and tape-and-reel format make it well suited for production environments requiring consistent, correctly oriented harness connections across large board counts.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STMM-123-02-T-D-SM-K-TR datasheet?
STMM-123-02-T-D-SM-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for STMM-123-02-T-D-SM-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total positions does the STMM-123-02-T-D-SM-K-TR provide, and how are they arranged across rows?
The STMM-123-02-T-D-SM-K-TR provides 46 total positions arranged in 2 rows of 23 contacts each, at a 2.00 mm pitch between adjacent pins. This dual-row configuration allows routing of 46 discrete signal or power wires into a connector footprint approximately 44 mm long, making it suitable for multi-axis motor controllers, high-channel-count sensor interfaces, or 32-bit parallel data bus connections between cable harnesses and PCBs.
How does the STMM-123-02-T-D-SM-K-TR's T contact finish compare to gold-plated contacts for repeated mating applications?
The T suffix in STMM-123-02-T-D-SM-K-TR indicates a tin-plated contact finish. Tin plating provides cost-effective corrosion resistance for cable mate connectors that undergo fewer than approximately 30 mating cycles over their service life, compared to gold-plated contacts preferred for high-cycle applications. For the 46-position 2.00 mm pitch shrouded connector used in industrial wiring applications where cables are rarely disconnected, tin plating offers adequate reliability at lower procurement cost.
Why is the shrouded design of the STMM-123-02-T-D-SM-K-TR important in industrial cable harness applications?
The shroud of the STMM-123-02-T-D-SM-K-TR physically protects all 46 contact pins from mechanical damage during handling and shipping, and guides the mating cable connector into precise alignment during field installation. In industrial environments where cables are routed through cable trays and may be subjected to vibration or pull forces, the shrouded design also retains the mating plug more securely than unshrouded pin headers, reducing the risk of intermittent connections on 2.00 mm pitch dual-row assemblies.
Can the STMM-123-02-T-D-SM-K-TR be mounted using standard reflow soldering, and what does SM termination require?
Yes, the SM (surface-mount) termination of the STMM-123-02-T-D-SM-K-TR is fully compatible with standard SMT reflow soldering processes at typical peak temperatures of 260°C per IPC-J-STD-020 for lead-free solder. The connector pads must be laid out per SAMTEC's recommended footprint for the STMM series at 2.00 mm pitch, and the part's tape-and-reel packaging ensures consistent placement by automated pick-and-place equipment, making it compatible with no-clean and water-wash PCB assembly processes.
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