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
Key Features
- 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
Applications
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) |
Alternate & Equivalent Parts
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.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”