SFM-121-T2-S-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-121-T2-S-D-A-P-TR is a 42-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch for surface-mount applications. It features polarization (P) and is supplied in tape-and-reel for automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-T2-S-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-121-T2-S-D-A-P-TR?
- 42-position dual-row configuration with 0.050" (1.27 mm) pitch enabling high-density mezzanine and board-to-board interconnects
- Polarization (P) keying feature prevents incorrect mating orientation, reducing assembly errors in production
- Surface-mount termination with tape-and-reel (TR) packaging compatible with automated pick-and-place equipment
- High-reliability construction designed for signal and low-power applications in demanding embedded environments
What is SFM-121-T2-S-D-A-P-TR used for?
The SFM-121-T2-S-D-A-P-TR is used in high-density mezzanine module interconnects and compact board-to-board stacking designs where positional reliability and anti-mis-mate protection are critical. The 0.050" pitch makes it a preferred choice for FPGA daughtercards, RF module interfaces, and embedded computing boards where PCB area is limited. Its tape-and-reel format suits automated SMT production environments manufacturing at volumes of thousands of units per run.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-121-T2-S-D-A-P-TR datasheet?
SFM-121-T2-S-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-121-T2-S-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the polarization (P) feature on the SFM-121-T2-S-D-A-P-TR do in a board assembly?
The polarization (P) keying feature provides a mechanical anti-mis-mate guide that prevents the connector from being inserted in the wrong orientation, reducing costly PCB rework in high-density 0.050" pitch assemblies where a 42-position socket could otherwise be mated backward without visual indication.
How many positions per row does the SFM-121-T2-S-D-A-P-TR have, and what is its contact pitch?
The SFM-121-T2-S-D-A-P-TR has 42 total positions in a dual-row layout, with 21 contacts per row and a 0.050" (1.27 mm) center-to-center pitch, providing a compact footprint suitable for high-density board-to-board and mezzanine connector applications.
Which industries and applications most commonly use the SAMTEC SFM-121-T2-S-D-A-P-TR?
This connector is widely adopted in FPGA module interfaces, RF test systems, embedded computing mezzanine cards, and military-grade electronics where high-reliability contacts at 0.050" pitch are required, often operating in temperature ranges from -55°C to +125°C and mating cycle counts exceeding 50 cycles.
Is the SFM-121-T2-S-D-A-P-TR compatible with SAMTEC SFM series male header strips, and what is the mated height?
Yes, the SFM-121-T2-S-D-A-P-TR mates with compatible SAMTEC SFM series male headers at 0.050" pitch; the typical mated stack height is approximately 4 mm, enabling extremely low-profile board-to-board stacking configurations in space-constrained electronic assemblies.
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