SFM-144-L2-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-144-L2-S-D-A-K is an 88-position dual-row high-reliability surface-mount socket strip with 0.050" (1.27 mm) pitch and latching key feature. Designed for high-density board-to-board connections in demanding embedded computing and industrial applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- SFM-144-L2-S-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 88-position dual-row layout at 0.050" (1.27 mm) pitch enabling extremely high signal density in surface-mount configurations
- Keying and locking (K option) prevents mis-mating and ensures consistent connector orientation in high-reliability assemblies
- Surface-mount termination with L2 stand-off height supports automated SMT reflow assembly and controlled coplanarity on production PCBs
Applications
The SFM-144-L2-S-D-A-K serves as a high-density mezzanine connector in FPGA modules, embedded computing boards, and industrial I/O expansion cards where 88 signals must traverse a board-to-board interface in minimal PCB area. Its keyed design prevents reversed insertion in field-replaceable module assemblies. Engineers select it for mission-critical data acquisition systems and rugged electronics requiring reliable multi-cycle mating.
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
How many positions and what pitch does the SFM-144-L2-S-D-A-K provide?
The SFM-144-L2-S-D-A-K offers 88 positions arranged in a dual-row configuration at 0.050" (1.27 mm) pitch, with 44 contacts per row. This layout delivers very high signal density in a compact surface-mount footprint approximately 58 mm long, suitable for FPGA daughter cards and processor module interconnects requiring large pin counts.
What does the K option (keying) add to the SFM-144-L2-S-D-A-K connector?
The K option on the SFM-144-L2-S-D-A-K adds a mechanical keying feature that prevents incorrect 180-degree insertion of the mating connector. This reduces assembly errors and protects sensitive signal lines in dual-row 88-pin interfaces, especially critical in field-replaceable module designs where technicians may swap boards without detailed guidance.
For which embedded computing architectures is the SFM-144-L2-S-D-A-K a suitable mezzanine socket?
The SFM-144-L2-S-D-A-K is appropriate for mezzanine interfaces in COM Express, FPGA SOM (System-on-Module), and custom carrier board designs requiring 88 differential or single-ended signals. Its 0.050" pitch and surface-mount termination allow routing at 100-ohm differential impedance on standard 4-layer PCBs, supporting data rates relevant to Gigabit Ethernet and LVDS video 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.”