SFM-141-02-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-141-02-LM-D-A-K is an 82-position dual-row high-reliability surface mount socket strip with 1.27 mm (0.050") pitch and a keying peg for polarization. It features gold-plated spring contacts rated at 1 A per pin for low-insertion-force mating. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 82
- Lifecycle
- ACTIVE
- Datasheet
- SFM-141-02-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 socket on a 1.27 mm (0.050") pitch delivers high contact density in a compact SMT area
- Integrated keying peg (K option) physically prevents incorrect mating orientation, reducing assembly errors on multi-connector boards
- Low-mass-molded (LM) contact retention provides low insertion force while maintaining reliable electrical contact over hundreds of mating cycles
- Gold-plated spring contacts rated at 1 A per pin for stable low-resistance signal connections in dense SMT layouts
Applications
SFM-141-02-LM-D-A-K is designed for high-density mezzanine board interconnects in FPGA daughter cards, software-defined radio platforms, and compact embedded computing modules where 82 signals must be routed across a 1.27 mm pitch SMT interface. The integrated keying peg eliminates incorrect mating in multi-connector assemblies, making this socket strip a reliable choice for field-replaceable modules in instrumentation and defense electronics. Its high-reliability contact design withstands repeated mating cycles typical in test and maintenance 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 does the '-K' suffix on SFM-141-02-LM-D-A-K indicate, and how does it prevent assembly errors?
The '-K' suffix indicates an integrated keying peg on the SFM-141-02-LM-D-A-K, which physically blocks incorrect 180-degree mating. On a board with multiple 82-position socket strips at 1.27 mm pitch, this peg ensures each connector can only seat in the correct orientation, preventing signal reversal faults that could damage sensitive circuitry during assembly or field maintenance.
How does the 1.27 mm pitch of SFM-141-02-LM-D-A-K benefit space-constrained PCB designs compared to 2.54 mm pitch alternatives?
At 1.27 mm (0.050 inch) pitch, SFM-141-02-LM-D-A-K fits 82 dual-row contacts in roughly half the board area needed by a 2.54 mm pitch equivalent. This density advantage is critical for FPGA mezzanine cards and compact RF modules where every square millimeter of PCB space is allocated, allowing designers to maintain full 82-signal connectivity without enlarging the board.
What current can each contact in SFM-141-02-LM-D-A-K carry, and how should power pins be distributed?
Each contact in SFM-141-02-LM-D-A-K is rated at approximately 1 A per pin. For power rails exceeding 1 A, engineers should assign multiple pins in parallel; for example, 5 pins in parallel supply up to 5 A, leaving the remaining 77 positions for signal routing in mixed-signal mezzanine applications. This parallel-pin approach is standard practice for 1.27 mm pitch socket strips.
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.”