SFM-144-L2-F-D-A-K SAMTEC Connector (Other) In Stock
The SFM-144-L2-F-D-A-K is an 88-position dual-row surface-mount socket strip from SAMTEC with a 0.050" pitch, built for high-reliability board-to-board mating in dense electronic assemblies. It offers precision-formed SMT contacts across all 88 positions for consistent mating force and low contact resistance. Available through global distribution channels for fast delivery to engineering and production teams worldwide.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- SFM-144-L2-F-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 on 0.050" (1.27 mm) pitch providing high pin density for compact mezzanine and board-to-board interconnects
- Surface-mount termination enables automated SMT reflow assembly without through-hole drilling or wave-soldering processes
- High-reliability SAMTEC construction with precision-formed contacts ensuring stable electrical performance over thousands of mating cycles
Applications
The SFM-144-L2-F-D-A-K is designed for high-density board-to-board interconnection in FPGA daughter modules, DSP mezzanine cards, and embedded computing stacks where 88 contacts on a 0.050" pitch pack power, ground, and high-speed differential signal lanes into a minimal footprint. Military and aerospace system integrators use the 0.050" socket strip in rugged avionics backplanes and mission-computer expansion slots that demand high contact reliability over extended service lives. The SMT footprint integrates without modification into standard automated SMT production lines handling high-density mixed-technology assemblies.
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 contacts does the SFM-144-L2-F-D-A-K provide per row, and what pin pitch separates them?
The SFM-144-L2-F-D-A-K provides 44 contacts per row in a dual-row arrangement for a total of 88 positions, spaced on a 0.050" (1.27 mm) pitch. This 0.050" pitch is exactly half the density of a standard 0.100" connector, so the same 88-pin signal count occupies roughly half the connector length on the PCB, a critical space saving for compact FPGA mezzanine cards and small-form-factor computing modules.
For which high-reliability applications is the SFM-144-L2-F-D-A-K's surface-mount design advantageous over a through-hole socket strip?
Surface-mount attachment avoids through-hole barrel stress concentrations that can crack under thermal cycling from -55°C to 125°C in avionics, defense electronics, and industrial robotics enclosures. The SMT solder joints also benefit from automated optical inspection and X-ray verification after reflow, enabling 100% joint-quality screening in aerospace programs that require IPC-7711/7721 workmanship standards, whereas through-hole joints on 88-pin connectors are harder to inspect non-destructively.
What should engineers verify when selecting the SFM-144-L2-F-D-A-K as a replacement for a previously specified 88-position 0.050" socket strip from another manufacturer?
Engineers must confirm that the replacement shares an identical 0.050" row-to-row and pin-to-pin pitch, the same overall 88-position body length, a compatible SMT land pattern within ±0.05 mm, and an equivalent current rating—typically 1 A per contact at 0.050" pitch—plus the same mating connector height to preserve the PCB stack-up clearance in the chassis. Contact plating type (gold flash versus hard gold over nickel) and the number of guaranteed mating cycles, often specified as 200 or 500 cycles, should also be matched to the application's maintenance schedule.
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