SFM-125-L2-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-L2-LM-D-A-K-TR is a 50-position dual-row high-reliability socket strip with 1.27mm (0.050") pitch in a surface mount package for dense board-to-board interconnects. Designed for high-cycle mating in military, aerospace, and industrial applications. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- SFM-125-L2-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-125-L2-LM-D-A-K-TR?
- 50-position dual-row socket strip at 1.27mm (0.050") pitch delivering high-density SMD board-to-board connectivity in compact form factor
- High-reliability construction rated for demanding mating cycles in aerospace, defense, and industrial applications requiring long service life
- Surface mount termination enabling automated reflow assembly and compatibility with standard SMD PCB manufacturing processes
What is SFM-125-L2-LM-D-A-K-TR used for?
The SFM-125-L2-LM-D-A-K-TR is used as a high-reliability SMD socket strip in FPGA mezzanine boards, military avionics modules, and test-and-measurement instrument backplanes where 50 dual-row contacts at 1.27mm pitch are required. Its high-cycle rated construction supports frequent board removal and reinsertion in field-serviceable industrial equipment and modular aerospace systems. The 0.050 inch pitch socket strip is also a common choice for high-density expansion interfaces on embedded computing platforms.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-125-L2-LM-D-A-K-TR datasheet?
SFM-125-L2-LM-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-125-L2-LM-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and contact count does the SFM-125-L2-LM-D-A-K-TR offer, and how does this compare to 0.100 inch pitch connectors?
The SFM-125-L2-LM-D-A-K-TR features 50 positions in a dual-row layout at 1.27mm (0.050 inch) pitch, providing 25 contacts per row. Compared to standard 2.54mm (0.100 inch) pitch connectors, the 0.050 inch pitch delivers approximately twice the contact density per unit PCB length, enabling higher pin-count connections within the same board area. This makes it ideal for FPGA I/O expansion headers and dense module interfaces.
What makes SFM-125-L2-LM-D-A-K-TR suitable for aerospace and defense applications requiring high mating cycle reliability?
SAMTEC's SFM series is designed to meet high-reliability connector requirements with robust socket contact design rated for many hundreds of mating cycles. The connector construction uses quality contact materials and plating optimized for low contact resistance over repeated insertions, making the SFM-125-L2-LM-D-A-K-TR well suited for avionics line-replaceable units (LRUs), military ruggedized computers, and test equipment requiring frequent module swapping over a service life of 10 or more years.
How does the SMD mounting of SFM-125-L2-LM-D-A-K-TR benefit board assembly compared to through-hole socket strips?
The surface mount (SMD) termination of the SFM-125-L2-LM-D-A-K-TR allows it to be placed by pick-and-place equipment and soldered via standard reflow processes, avoiding the through-hole drilling required for PTH socket strips. This reduces PCB fabrication cost, supports finer pitch layouts, and allows connector placement on densely routed 8-layer or higher PCBs where drill clearances for 50-pin through-hole connectors would consume excessive routing space.
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About SAMTEC
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