SFM-121-L2-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-121-L2-S-D-A-K is a 42-position dual-row high-reliability surface-mount socket strip with 0.050 inch (1.27 mm) pitch designed for high-density board-to-board connections. Available in stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-L2-S-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 42-position dual-row layout at 0.050 inch (1.27 mm) pitch for high-density signal routing
- Surface-mount termination enabling reflow-compatible PCB assembly with automated placement
- High-reliability socket strip construction rated for demanding vibration and mating cycle environments
- Compact footprint supporting space-constrained board-to-board interconnect designs
Applications
The SFM-121-L2-S-D-A-K is used in high-density board-to-board interconnect applications such as embedded computing modules, FPGAs, and DSP daughtercards where 0.050 inch pitch saves PCB real estate. Its surface-mount profile makes it compatible with automated SMT assembly lines in telecom, defense, and industrial control equipment. The dual-row configuration provides 42 signal positions per connector, enabling data-intensive parallel bus connections in compact system designs.
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
How many signal positions does SFM-121-L2-S-D-A-K provide and at what pitch?
The SFM-121-L2-S-D-A-K provides 42 positions arranged in a dual-row configuration at 0.050 inch (1.27 mm) pitch, delivering high signal density for board-to-board connections in space-constrained designs.
Can SFM-121-L2-S-D-A-K be placed with standard SMT pick-and-place equipment?
Yes, the SFM-121-L2-S-D-A-K features a surface-mount termination style compatible with automated pick-and-place and reflow soldering at standard SMT profile temperatures, integrating into high-volume PCB assembly lines without special tooling.
What board-to-board applications are best suited for SFM-121-L2-S-D-A-K?
FPGA mezzanine cards, embedded processor daughterboards, and telecom line cards benefit from the SFM-121-L2-S-D-A-K's 42-pin dual-row layout and 0.050 inch pitch, which supports parallel buses at 42 signals per mating pair within a compact SMT footprint.
When should SFM-121-L2-S-D-A-K be chosen over a single-row strip of equivalent pitch?
Choose SFM-121-L2-S-D-A-K when a design requires more than 21 signals but must minimize connector length; the dual-row layout nearly halves the board edge length compared to a single-row 42-pin strip at the same 1.27 mm pitch.
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