SFM-122-02-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
The SFM-122-02-LM-D-A-K-TR is a 44-position dual-row high-reliability surface-mount socket strip from Samtec with 0.050" pitch. It provides fine-pitch mating for board-to-board and module-on-board connections in compact high-density designs. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- SFM-122-02-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 44-position dual-row layout on 0.050" (1.27mm) pitch enables high-density board-to-board mating in space-constrained electronics
- High-reliability surface-mount construction suits demanding applications requiring consistent contact force over thousands of mating cycles
- Compatible with Samtec TSM and similar fine-pitch header families, enabling modular daughter-card and mezzanine board designs
Applications
The SFM-122-02-LM-D-A-K-TR is designed for high-density board-to-board and mezzanine module interconnects in embedded computing, communications, and instrumentation equipment where 0.050" pitch saves significant PCB real estate compared with 0.100" alternatives. It is well-suited for daughter-card sockets on SBCs, FPGA expansion modules, and test fixture interfaces that require reliable multi-cycle mating performance. The tape-and-reel packaging supports high-volume automated SMT assembly lines.
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 position count of the SFM-122-02-LM-D-A-K-TR, and how does the fine pitch benefit compact PCB layouts?
The SFM-122-02-LM-D-A-K-TR has 44 positions on a 0.050" (1.27mm) pitch in a dual-row surface-mount configuration. The 0.050" pitch provides twice the contact density per unit length compared with 0.100" connectors, allowing a 44-position interface to occupy roughly the same board footprint as a 22-position standard-pitch connector, which is critical in space-constrained modules and embedded computing boards.
What reliability characteristics make the SFM-122-02-LM-D-A-K-TR suitable for mezzanine and daughter-card applications?
Samtec's SFM series is rated as high-reliability, with contact systems designed to maintain low contact resistance over repeated mating cycles typically specified at 100 cycles or more. The surface-mount attachment provides a robust solder joint with 44 pins anchoring the socket to the PCB, and the dual-row layout distributes mating forces evenly to prevent connector tilt or delamination of pads during module insertion.
How is the SFM-122-02-LM-D-A-K-TR packaged for production, and what does the TR suffix indicate?
The TR suffix denotes tape-and-reel packaging, meaning the connectors are supplied on a continuous carrier reel for automated SMT pick-and-place assembly. Tape-and-reel format supports high-volume PCB production lines and reduces manual handling, which lowers the risk of contact damage and ESD exposure during assembly of fine-pitch 0.050" pitch components.
Which mating header families are compatible with the SFM-122-02-LM-D-A-K-TR for board-to-board stack designs?
The SFM series is designed to mate with Samtec's TSM and TFM 0.050" pitch header families, giving engineers a matched board-to-board connector system with controlled stack height. Using a matched Samtec header-socket pair on two PCBs separated by 2mm to 20mm stack heights enables modular mezzanine architectures where daughter cards carrying FPGAs, memory, or RF modules plug directly onto a main carrier board.
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