STMM-120-02-S-D-SM SAMTEC Connector (Other) In Stock
SAMTEC STMM-120-02-S-D-SM is a 2.00 mm pitch shrouded terminal strip board stacking connector with 40 positions, gold-plated mating contacts, matte tin termination, and RoHS-compliant construction. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- STMM-120-02-S-D-SM Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2.00 mm pitch board stacking connector with 40 dual-row positions for high-density PCB interconnects
- Gold (30 µin) mating contacts ensure reliable low-resistance electrical connections over thousands of mating cycles
- RoHS-compliant (JESD-609 e3) matte tin termination finish suitable for lead-free soldering processes
Applications
The STMM-120-02-S-D-SM is designed for board-to-board stacking applications in industrial control systems, data acquisition modules, and embedded computing platforms where reliable 2.00 mm pitch interconnects are required. Its shrouded housing and dual-row layout make it ideal for compact PCB designs needing secure mechanical alignment between stacked boards. This connector also suits telecommunications equipment and instrumentation where 40-position high-density connectivity with gold contacts is specified.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 2 Weeks, 6 Days |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (30) |
| Contact Finish Termination | MATTE TIN |
| Contact Material | NOT SPECIFIED |
| DIN Conformance | NO |
| IEC Conformance | NO |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Manufacturer Series | STMM |
| Option | GENERAL PURPOSE |
| Package | Other |
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 is the pitch and row configuration of the STMM-120-02-S-D-SM connector?
The STMM-120-02-S-D-SM features a 2.00 mm pitch dual-row shrouded terminal strip with 40 total positions arranged across 2 rows of 20, providing a compact footprint for board stacking applications in space-constrained PCB designs.
Which contact finish is used for mating in the STMM-120-02-S-D-SM, and how does it affect durability?
The mating contacts are plated with 30 µin of gold, which provides excellent corrosion resistance and low contact resistance, ensuring reliable electrical performance over thousands of mating cycles. The termination side uses matte tin, compatible with standard lead-free soldering at reflow temperatures up to 260°C.
Is the STMM-120-02-S-D-SM compliant with RoHS and lead-free assembly requirements?
Yes, the STMM-120-02-S-D-SM carries a JESD-609 e3 Pb-free code, confirming full RoHS compliance and suitability for lead-free assembly processes. Its matte tin termination supports reflow soldering and is compatible with 2-wire and 4-wire board stacking configurations in industrial and consumer electronics.
In what types of board stacking systems is the STMM-120-02-S-D-SM typically used?
This 40-position, 2.00 mm pitch shrouded connector is commonly used in industrial automation controllers, embedded computing modules, and data acquisition boards where at least 2 stacked PCBs need a secure mechanical and electrical interface. Its dual-row layout supports high signal density with up to 40 independent circuits per connector.
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