SFM-121-T2-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-121-T2-LM-D-A-K is a 42-position dual-row high-reliability socket strip with 0.050" pitch for surface mount applications, providing 84 contacts in a compact footprint. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-T2-LM-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 socket at 0.050" (1.27 mm) pitch enabling 84-contact high-density SMT interconnects
- High-reliability construction suitable for military, aerospace, and ruggedized industrial connector applications
- Low-profile surface mount termination compatible with standard SMT reflow soldering processes
- Dual-row design maximizes contact density while minimizing board footprint compared to single-row alternatives
Applications
The SFM-121-T2-LM-D-A-K is optimized for high-density, high-reliability signal interconnects in aerospace avionics, military electronics, and high-performance computing modules where 0.050" pitch connectors are required to maximize contact count per unit area. Its 42-position dual-row format provides 84 signal paths in a fraction of the space occupied by 0.100" pitch alternatives. Test and measurement equipment designers also use this socket strip for secure board-to-module mating in compact instrument chassis.
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-LM-D-A-K provide, and what is its pitch?
The SFM-121-T2-LM-D-A-K is a 42-position dual-row socket providing 84 total contacts at a 0.050" (1.27 mm) pitch, making it suitable for ultra-high-density signal routing on compact PCBs in size-constrained designs.
For which application environments is the high-reliability designation of the SFM-121-T2-LM-D-A-K most critical?
The high-reliability rating is most critical in aerospace, military, and medical applications where connectors must maintain contact integrity across thermal cycles from -55°C to +125°C and withstand mechanical shock and vibration per MIL-STD specifications.
How does the 0.050" pitch of the SFM-121-T2-LM-D-A-K benefit board-space-constrained designs compared to 0.100" pitch connectors?
At 0.050" (1.27 mm) pitch, the SFM-121-T2-LM-D-A-K achieves twice the contact density of 0.100" pitch alternatives, fitting 84 contacts in the same linear space that a 0.100" connector would require for only 42 contacts, saving significant PCB real estate.
What mating connector from SAMTEC pairs with the SFM-121-T2-LM-D-A-K?
SAMTEC's SHF or SFMC dual-row header strips at 0.050" pitch in 42-position dual-row configurations mate with the SFM-121-T2-LM-D-A-K, providing a secure 84-contact board-to-board or board-to-module mated interface rated for repeated mating cycles.
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