SFM-143-02-L-D-A SAMTEC Connector (Other) In Stock
SAMTEC SFM-143-02-L-D-A is an 86-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch and low-profile surface mount termination. Engineered for high-density mezzanine and board-to-board interconnect with gold-plated contacts for durability across extended mating cycles. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- SFM-143-02-L-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 86-position dual-row layout at 0.050" (1.27 mm) pitch providing high signal density in a compact surface mount footprint
- Low-profile (L) termination style minimizes connector height for space-constrained stacked board assemblies
- Gold-plated high-reliability contacts maintaining low contact resistance over hundreds of mating cycles in demanding environments
Applications
The SFM-143-02-L-D-A is suited for high-density mezzanine interconnect in telecommunications equipment, FPGA development platforms, and modular instrumentation where 86 signal paths are needed at 0.050" pitch. Its low-profile SMT design minimizes the board-to-board stack height, enabling thin multi-board assemblies in compact enclosures. This connector is also used in defense electronics and test equipment requiring reliable, repeatable board-level connections.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SFM-143-02-L-D-A:
Board Connector, 86 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Frequently Asked Questions
What does the low-profile (L) designation mean for the SFM-143-02-L-D-A in a stacked board design?
The L designation in SFM-143-02-L-D-A refers to the low-profile termination style, which reduces the connector's above-board height compared to standard termination variants. For 86-position dual-row boards at 0.050" pitch, the low-profile option typically provides a board-to-board mated stack height of approximately 4 mm to 6 mm, enabling thinner multi-board assemblies in compact rackmount or embedded system enclosures.
How many signal paths does the SFM-143-02-L-D-A provide, and how does 0.050" pitch help with routing?
The SFM-143-02-L-D-A provides 86 positions in a dual-row configuration with 43 contacts per row at 0.050" (1.27 mm) pitch. Compared to 0.100" pitch alternatives of similar position count, the finer pitch halves the connector length, freeing PCB routing channels on adjacent signal layers and reducing the via escape congestion on boards with 8 or more copper layers.
In which high-reliability application environments is the SFM-143-02-L-D-A connector typically deployed?
The SAMTEC SFM series is qualified for high-reliability environments including aerospace avionics, defense electronics, and industrial control systems operating from -55°C to +125°C. The gold-plated contacts on the SFM-143-02-L-D-A resist oxidation and maintain contact resistance below 20 milliohms after 500 or more mating cycles, satisfying requirements for field-replaceable module designs that require repeated insertion and removal during maintenance.
Is the SFM-143-02-L-D-A compatible with SAMTEC pin header mating connectors for a complete board-to-board system?
Yes, the SFM-143-02-L-D-A mates with SAMTEC TFM or SFM-series pin headers at the matching 0.050" pitch and 86-position dual-row configuration. The mated pair provides a mechanically robust connection capable of withstanding vibration up to 20 G and shock loads typical of industrial and defense platform requirements, while supporting signal frequencies into the GHz range for high-speed digital interfaces.
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.”