SFM-148-L2-FM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-148-L2-FM-D-A-K is a 96-position dual-row high-reliability SMT socket strip with 1.27mm (0.050 inch) pitch, gold-plated contacts, and precision machined construction for high-density mezzanine board interconnects.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 96
- Lifecycle
- ACTIVE
- Datasheet
- SFM-148-L2-FM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 96 positions in a dual-row 1.27mm pitch surface mount layout achieves extremely high pin density for high-speed mezzanine and module-on-carrier board stacking applications
- High-reliability machined contacts with gold-over-nickel finish rated for 500+ mating cycles ensure long-term signal integrity for differential pairs and high-speed serial interfaces
- SMT termination with precision-machined socket housing provides tight coplanarity control, ensuring uniform solder joint quality across all 96 positions during reflow assembly
Applications
The SFM-148-L2-FM-D-A-K is used in high-density mezzanine interconnect applications such as FPGA mezzanine card (FMC) sockets, COM Express carrier boards, and high-speed data acquisition modules where 96 pins at 1.27mm pitch are needed for differential signal routing. Its high-reliability machined contact design makes it suitable for mil-aero, medical imaging, and industrial computing systems that demand consistent signal integrity over thousands of operational hours. The surface mount format also supports automated PCB assembly in high-volume production of telecom and networking line cards.
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 pitch and position count of the SFM-148-L2-FM-D-A-K, and what board stacking formats does it support?
The SFM-148-L2-FM-D-A-K has 96 positions arranged in a dual-row layout on a 1.27mm (0.050 inch) pitch. This configuration is compatible with high-density mezzanine standards including FMC (FPGA Mezzanine Card) and similar module-on-carrier architectures used in FPGA development, radar, and data acquisition systems.
How does the machined contact design of the SFM-148-L2-FM-D-A-K improve high-speed signal performance compared to stamped contacts?
Machined contacts in the SFM-148-L2-FM-D-A-K provide tighter dimensional tolerances and more consistent contact geometry than stamped contacts, resulting in lower and more predictable insertion loss and impedance discontinuities at frequencies above 1GHz. This makes the connector suitable for high-speed differential interfaces such as PCIe, LVDS, and SERDES links running at multiple Gbps.
What mating cycle durability does the SFM-148-L2-FM-D-A-K support, and for which environments is it rated?
The SFM-148-L2-FM-D-A-K is rated for 500 or more mating cycles with gold-over-nickel plating on the contact mating surfaces. The high-reliability construction suits industrial, military, and aerospace environments with wide temperature ranges, mechanical shock, and vibration exposure where connector failure would be costly to repair.
Is the SFM-148-L2-FM-D-A-K compatible with standard SMT reflow assembly, and what coplanarity does it maintain?
Yes, the SFM-148-L2-FM-D-A-K is designed for surface mount reflow soldering. SAMTEC's precision machined housing maintains coplanarity of 0.10mm or better across all 96 termination pins, ensuring uniform solder paste coverage and reliable joint formation during standard lead-free reflow profiles without requiring hand soldering or rework.
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.”