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.
Related Guides
TLMG1100-GS08 Indicator LED PCB Design and Validation Guide
Design and validate a TLMG1100-GS08 indicator PCB with current calculations, GPIO checks, polarity review, and enclosure tests.
Nov 7, 2026
How to Choose RK73H1ETTP1002F: Chip Resistor Selection Guide 2026
Select RK73H1ETTP1002F for 10 kΩ circuits: compare four catalog options, check power and package limits, and prepare an exact-part sourcing request.
Nov 7, 2026
ECA1JHG220: 22 µF, 63 V Electrolytic Capacitor Selection Guide
Choose ECA1JHG220 using voltage, tolerance, ripple, temperature and fit checks, with four Panasonic catalog candidates compared.
Nov 6, 2026
How to Choose an Indicator LED: TLMG1100-GS08 Selection Guide
Select TLMG1100-GS08 and evaluate four indicator LED candidates through optical, electrical, footprint, and sourcing checks.
Nov 5, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector