SFM-144-L2-SM-D-A-K SAMTEC Connector (Other) In Stock
The SAMTEC SFM-144-L2-SM-D-A-K is an 88-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in a surface-mount configuration. It provides dense 88-circuit board-to-board connectivity for demanding mating cycle and signal-density requirements in defense and telecom designs. Available globally with SMT-compatible termination for automated production assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- SFM-144-L2-SM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 88 positions dual-row at 0.050" (1.27 mm) pitch delivering high signal density in a compact SMT footprint
- High-reliability rated construction for demanding mating cycles required by defense, aerospace, and telecom applications
- Surface-mount termination enables automated reflow soldering and eliminates through-hole PCB drilling for 88 contacts
- Low-profile dual-row socket design reduces board-to-board stack height in multi-card module assemblies
Applications
The SFM-144-L2-SM-D-A-K is used in FPGA mezzanine card (FMC) interconnects, defense avionics modules, and high-speed telecom line cards where 88 signals at 0.050" pitch must be reliably connected through multiple mating cycles. Its surface-mount footprint fits alongside fine-pitch BGA devices on advanced PCB layouts, enabling compact multi-board stack-up designs. High-reliability contact construction ensures stable signal integrity over the extended service life required in mission-critical electronics.
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 count and pitch of the SAMTEC SFM-144-L2-SM-D-A-K, and how does it compare to standard pitch connectors?
The SFM-144-L2-SM-D-A-K has 88 positions in a dual-row layout at 0.050" (1.27 mm) pitch. At half the pitch of standard 0.100" (2.54 mm) connectors, it provides approximately twice the signal density per inch of board length, enabling 88-circuit connectivity in the footprint that a 44-position standard pitch connector would occupy.
What high-reliability features make the SFM-144-L2-SM-D-A-K suitable for aerospace and defense applications?
The high-reliability rating covers enhanced mating cycle endurance, tighter contact resistance tolerances, and more stringent environmental qualification compared to commercial-grade socket strips. For defense avionics and aerospace modules where 88-channel connectors must function reliably after repeated board removal and reinstallation, these specifications are critical.
How does the SMT design of the SFM-144-L2-SM-D-A-K affect PCB layout for FPGA mezzanine card applications?
The SMT termination allows the 88-position socket to be reflowed alongside BGA and fine-pitch QFP components in a single pass, eliminating separate through-hole assembly steps. This is important in FMC (FPGA Mezzanine Card) layouts where the connector must be placed within 0.050" pitch routing channels close to high-speed FPGA I/O banks.
When should a designer choose SFM-144-L2-SM-D-A-K over the SFM-134-L2-SM-D-A-K for a board-to-board interconnect?
Choose the SFM-144-L2-SM-D-A-K when the design requires 88 signal channels rather than 68, or when future I/O expansion is anticipated. The additional 20 contacts at the same 0.050" pitch and high-reliability rating enable higher-bandwidth interfaces, such as parallel memory buses or multi-lane differential pairs, without increasing the connector pitch or stack height.
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