SFM-140-L2-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-140-L2-LM-D-A-K is an 80-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch and lead-modified (LM) surface mount termination. It features 40 contacts per row with gold-plated terminals for low-resistance, long-life interconnects.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- SFM-140-L2-LM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-140-L2-LM-D-A-K?
- 80-position dual-row configuration at 1.27 mm pitch enables dense signal routing on compact PCBs
- Lead-modified surface mount (LM) termination suits reflow soldering and provides enhanced coplanarity for reliable PCB attachment
- High-reliability (L2) rated contacts with gold plating ensure low contact resistance and long mating cycle life
- Dual-row (D) design doubles signal density compared to single-row alternatives in the same board length
What is SFM-140-L2-LM-D-A-K used for?
The SFM-140-L2-LM-D-A-K is suitable for board-to-board, mezzanine, and daughter-card interconnect applications in embedded computing, telecom, and industrial automation systems. With 80 positions at 1.27 mm pitch, it supports high pin-count interfaces where space efficiency and reliable SMT connections are critical across demanding operating environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-140-L2-LM-D-A-K datasheet?
SFM-140-L2-LM-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-140-L2-LM-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pin count and row configuration of the SFM-140-L2-LM-D-A-K?
The SFM-140-L2-LM-D-A-K provides 80 positions arranged in 2 rows of 40 contacts each, with a 1.27 mm (0.050") center-to-center pitch. This dual-row layout allows high-density signal routing in a compact surface-mount footprint on PCBs.
How does the LM termination style of SFM-140-L2-LM-D-A-K differ from standard SM termination?
The lead-modified (LM) SMT termination on the SFM-140-L2-LM-D-A-K is designed with extended, shaped leads that improve coplanarity tolerance during reflow, making it easier to achieve consistent solder joints on PCBs with minor surface variations. Standard SM termination uses shorter, flat leads without this enhancement.
Which industrial and computing systems can benefit from using the SFM-140-L2-LM-D-A-K?
This 80-position, 1.27 mm pitch socket strip is well-suited for use in embedded computing modules, industrial control backplanes, telecom line cards, and test and measurement equipment. Its high-reliability (L2) gold-plated contacts support demanding environments requiring extended mating cycles and low insertion loss over temperature ranges from -55°C to +125°C.
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