STMM-121-02-G-D-SM-K-TR SAMTEC Connector (Other) In Stock
SAMTEC STMM-121-02-G-D-SM-K-TR is a 2.00 mm pitch 42-position dual-row shrouded male terminal strip with Gold-over-Nickel contact finish and surface-mount termination in tape-and-reel packaging. From $3.50 in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Category
- Connector
- Price
- From $3.7700(MOQ 50)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STMM-121-02-G-D-SM-K-TR?
- 42-position dual-row 2.00 mm pitch shrouded male terminal strip providing high pin density in a 1.881-inch body length
- Gold (Au) over Nickel (Ni) barrier contact finish on termination for superior corrosion resistance and reliable solder joint integrity
- Surface-mount (SM) termination with tape-and-reel (TR) packaging enabling automated high-volume SMT assembly
What is STMM-121-02-G-D-SM-K-TR used for?
The STMM-121-02-G-D-SM-K-TR is used in high-density cable-to-board interconnect applications including embedded computing modules, industrial fieldbus cards, and medical instrument interface boards requiring a compact 2.00 mm pitch 42-pin dual-row shrouded header. Its surface-mount Gold-contact design supports reliable signal transmission in vibration-prone environments such as robotics controllers and automotive telematics units. The shrouded housing prevents accidental mis-mating and protects the 42 square-pin contacts during field installation and maintenance.
What are the specifications of STMM-121-02-G-D-SM-K-TR?
| YTEOL | 8.4 |
| Body Breadth | 0.237inch |
| Body Depth | 0.24inch |
| Body Length | 1.881inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Termination | Gold (Au) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.078inch |
| Mating Contact Row Spacing | 0.078inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Row Spacing | 4.66mm |
| Plating Thickness | 20u inch |
| Rated Current (Signal) | 3A |
| Terminal Pitch | 2mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 42 |
| UL Flammability Code | 94V-0 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Where can I find the STMM-121-02-G-D-SM-K-TR datasheet?
STMM-121-02-G-D-SM-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for STMM-121-02-G-D-SM-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does STMM-121-02-G-D-SM-K-TR provide and how are they arranged?
The STMM-121-02-G-D-SM-K-TR provides 42 total positions in a dual-row configuration with 21 contacts per row at 2.00 mm pitch, spanning a body length of 1.881 inch, suitable for high-density PCB cable-to-board interfaces in compact modules.
Why does the Gold-over-Nickel contact finish on STMM-121-02-G-D-SM-K-TR benefit high-cycle mating applications?
The Gold (Au) over Nickel (Ni) barrier contact finish on the STMM-121-02-G-D-SM-K-TR maintains contact resistance below 20 mΩ across more than 50 mating cycles by preventing oxidation and fretting corrosion, which is critical for cable assemblies that are disconnected for maintenance or reconfiguration.
Which cable-mate assemblies from SAMTEC are compatible with STMM-121-02-G-D-SM-K-TR?
The STMM-121-02-G-D-SM-K-TR mates with SAMTEC 2.00 mm pitch dual-row cable receptacle assemblies in the FFSD, IDSD, and TCSD series, accommodating 26 AWG to 30 AWG wire gauges with a mating retention force typically above 3 N per contact pair.
For a medical instrument PCB, how does the shrouded housing of STMM-121-02-G-D-SM-K-TR improve safety?
The shrouded housing of STMM-121-02-G-D-SM-K-TR encloses all 42 square pins within a polarized shell that prevents accidental mis-insertion and short-circuit risk during field servicing, while the 2.00 mm pitch keeps the connector footprint under 45 mm x 6 mm for compact medical instrument PCBs.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $10.3300 | $516.50 |
| 100+ | $8.0500 | $805.00 |
| 500+ | $7.2890 | $3644.50 |
| 1000+ | $5.5640 | $5564.00 |
| 1300+ | $5.2904 | $6877.47 |
| 2000+ | $3.7700 | $7540.00 |
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.”
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