SFM-121-T2-H-D-A-K-TR SAMTEC Connector (Other) In Stock
The Samtec SFM-121-T2-H-D-A-K-TR is a 42-position dual-row high-reliability SMT socket strip with 0.050 inch (1.27 mm) pitch for dense board-to-board connections. It features surface-mount termination with a tape-and-reel packaging for automated assembly. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-T2-H-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 42-position dual-row layout on 0.050 inch (1.27 mm) pitch delivers 84 contacts in a compact SMT footprint for high-density interconnect
- High-reliability socket strip construction rated for repeated mating cycles, suitable for test, daughterboard, and module-to-baseboard applications
- Tape-and-reel packaging enables automated SMT pick-and-place assembly for high-volume production lines
Applications
The SFM-121-T2-H-D-A-K-TR is used for board-to-board interconnection in compute modules, FPGA development boards, and high-density mezzanine card assemblies requiring 84 contacts in a 1.27 mm pitch socket. Its high-reliability design supports repeated plug-and-unplug cycles in test fixture and field-replaceable module applications. The SMT surface-mount termination allows integration into automated reflow soldering production lines without manual connector placement.
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 total contacts does the SFM-121-T2-H-D-A-K-TR provide, and what is its mating pitch?
The SFM-121-T2-H-D-A-K-TR is a 42-position dual-row socket strip providing 84 total contacts on a 0.050 inch (1.27 mm) pitch. This contact density makes it suitable for high-bandwidth board-to-board connections in FPGA modules, memory daughterboards, and compact embedded computing systems where 84 signal or power lines must be routed across a board interface in minimal PCB area.
In what board-to-board applications does the Samtec SFM-121-T2-H-D-A-K-TR outperform a standard 2.54 mm pitch connector?
The 1.27 mm (0.050 inch) pitch of the SFM-121-T2-H-D-A-K-TR saves approximately 50% of connector row length compared to a 2.54 mm pitch 42-position dual-row part. This compact footprint is critical in mezzanine card, compute module, and FPGA carrier board designs where PCB real estate is limited and 84 signal connections must fit within a constrained connector keep-out zone.
Is the SFM-121-T2-H-D-A-K-TR compatible with automated SMT assembly and what packaging format does it ship in?
Yes, the SFM-121-T2-H-D-A-K-TR is supplied on tape-and-reel (TR suffix) packaging for full compatibility with automated SMT pick-and-place machines. The surface-mount termination style allows simultaneous reflow soldering alongside other SMT components, eliminating manual placement and reducing assembly cost in high-volume production of boards with 84-pin dual-row socket requirements.
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