STMM-122-02-G-D-SM SAMTEC Connector (Other) In Stock
Samtec STMM-122-02-G-D-SM is a 2.00 mm pitch dual-row shrouded terminal strip board-stacking connector with gold over nickel contact finish and phosphor bronze contacts. It provides 44 positions in a cable-mate configuration suited for high-reliability board-to-board interconnects. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- STMM-122-02-G-D-SM Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2.00 mm pitch dual-row shrouded design with 44 positions for high-density board-stacking interconnects
- Gold (20 µin) over nickel (50 µin) contact finish on phosphor bronze contacts ensures low contact resistance and extended mating cycle life
- Shrouded housing provides mechanical keying and protection against mis-mating in dense multi-connector assemblies
Applications
The STMM-122-02-G-D-SM is designed for board-to-board and cable-to-board interconnect applications in telecommunications equipment, industrial control modules, and high-density computing systems. Its 2.00 mm pitch and shrouded terminal strip configuration allow reliable signal routing between PCBs in rack-mounted or backplane assemblies. The gold-plated contacts maintain stable electrical performance across repeated mating cycles in vibration-prone environments.
Specifications
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (20) OVER NICKEL (50) |
| Contact Finish Termination | Gold (Au) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| Rated Current (Signal) | 3A |
| Terminal Pitch | 2mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 44 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the STMM-122-02-G-D-SM use, and how does it affect connector reliability over many mating cycles?
The STMM-122-02-G-D-SM uses 20 µin gold over 50 µin nickel plating on phosphor bronze contacts. This multilayer finish provides low and stable contact resistance across hundreds to thousands of mating cycles, resisting oxidation and wear. The nickel barrier prevents gold migration into the base metal, extending connector life in high-cycle applications such as test fixtures or field-replaceable modules.
For a backplane design needing 44 signal lines at 2 mm pitch, is the STMM-122-02-G-D-SM a suitable choice?
Yes, the STMM-122-02-G-D-SM provides 44 positions at a 2.00 mm pitch in a dual-row configuration, making it a direct fit for backplane or mezzanine designs that need high pin counts without exceeding tight board widths. Its shrouded housing adds polarisation to prevent reversed mating, which is critical in systems with multiple adjacent connectors of the same pitch.
What is the typical lead time for the STMM-122-02-G-D-SM, and how should procurement teams plan for it?
The factory lead time for the STMM-122-02-G-D-SM is 6 weeks from Samtec. Procurement teams should place orders at least 6–8 weeks before the assembly start date to avoid production delays. For programs with uncertain schedules, ordering safety stock or confirming distributor on-hand inventory early is advisable, especially for new product introduction builds where connector fit is verified before mass production.
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