SFM-141-T2-LM-D-A-K SAMTEC Connector (Other) In Stock
The SFM-141-T2-LM-D-A-K is an 82-position dual-row high-reliability socket strip from SAMTEC with a 0.050-inch (1.27 mm) pitch, designed for surface mount mezzanine board-to-board interconnect. It features a low-mount (LM) above-board height, gold-plated contacts, and anti-misalignment keying for reliable high-cycle connections. Available globally from authorized distributors with in-stock inventory for immediate shipment.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 82
- Lifecycle
- ACTIVE
- Datasheet
- SFM-141-T2-LM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 82-position dual-row layout on 0.050-inch (1.27 mm) pitch provides exceptional signal density for high pin-count mezzanine and processor module interconnects
- Low-mount (LM) above-board height minimizes the board-to-board stack dimension, enabling slim embedded computing and instrument designs where vertical clearance is under 10 mm
- Anti-misalignment keying (K suffix) prevents reversed or offset mating, protecting 82 signal contacts from damage during blind mating or field maintenance procedures
Applications
The SFM-141-T2-LM-D-A-K is designed for high-density board-to-board interconnect in embedded computing platforms, FPGA mezzanine cards, and industrial module systems requiring 82 simultaneous signal and power connections on a compact 0.050-inch pitch. Its keyed, low-mount socket design ensures correct blind-mate alignment in rack-mounted and field-replaceable module assemblies. The surface mount termination allows integration into standard SMT reflow production lines without manual soldering, supporting high-volume automated manufacturing.
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 total pin count and row arrangement of the SFM-141-T2-LM-D-A-K?
The SFM-141-T2-LM-D-A-K has 82 total contacts arranged in 2 rows of 41 on a 0.050-inch (1.27 mm) pitch, resulting in a connector body length of approximately 52 mm. This dual-row 82-pin layout accommodates high-bandwidth interfaces such as PCIe x8, LVDS camera links, or DDR memory buses alongside dedicated power and ground pins all within a single connector body.
What does the LM designation mean for the SFM-141-T2-LM-D-A-K and how does it affect board-to-board stack height?
The LM suffix indicates a low-mount above-board height of approximately 2 mm for the socket body. When mated with a corresponding low-profile plug strip, the total board-to-board separation is typically 4 mm to 5 mm, leaving sufficient clearance for surface mount passives and small ICs on the inner faces of both PCBs in a mezzanine assembly with less than 6 mm total inter-board gap.
How does the keying feature (K suffix) of the SFM-141-T2-LM-D-A-K protect the connector in blind-mate applications?
The K suffix indicates a polarization key built into the connector housing that prevents the mating plug from being inserted 180° reversed or laterally offset. In a blind-mate rack module application where the technician cannot visually confirm alignment before seating the board, the keying feature prevents bent or shorted contacts across all 82 pins, reducing repair costs and field failures caused by incorrect mating.
What current can each contact pin of the SFM-141-T2-LM-D-A-K carry and how many pins should be paralleled for a 5 A power rail?
SAMTEC SFM series contacts are rated at 1 A per pin at 30 V AC/DC with gold-plated contact resistance below 20 milliohms. For a 5 A power rail at 5 V, a minimum of 5 pins should be paralleled for the power net and 5 additional pins for the return ground, consuming 10 of the 82 contacts and leaving 72 contacts available for signal, differential pair, and control line routing.
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