SFM-144-T2-FM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-144-T2-FM-D-LC is an 88-position dual-row high-reliability surface-mount socket strip at 0.050" (1.27 mm) pitch with a low-clearance floating mount design for precision board-to-board mezzanine interconnection.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- SFM-144-T2-FM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-144-T2-FM-D-LC?
- 88-position dual-row layout at 0.050" (1.27 mm) pitch delivering 44 signal pairs per connector for high-density SMT mezzanine boards
- Floating mount (-FM) design compensates for PCB-to-PCB misalignment of up to ±0.25 mm, improving assembly yield in dual-board stacks
- Low-clearance (-LC) profile minimizes connector height above the PCB, enabling compact stacked module designs with tight vertical clearance
What is SFM-144-T2-FM-D-LC used for?
The SFM-144-T2-FM-D-LC is suited for high-density mezzanine connector applications in server computing modules, networking line cards, and FPGA expansion boards requiring 88-position dual-row signal routing at 1.27 mm pitch. The floating mount feature makes it especially valuable in blind-mate or press-fit board stacking scenarios where mechanical tolerance stacking demands self-aligning contact technology.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-144-T2-FM-D-LC datasheet?
SFM-144-T2-FM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-144-T2-FM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the floating mount (-FM) feature on the SFM-144-T2-FM-D-LC provide for board assembly?
The floating mount (-FM) design in the SFM-144-T2-FM-D-LC allows the connector contacts to self-align during mating, compensating for PCB-to-PCB misalignment of up to ±0.25 mm. This reduces the risk of bent pins or partial engagement across all 88 positions when stacking boards in blind-mate or vibration-prone industrial and networking environments.
How does the low-clearance (LC) designation benefit compact mezzanine PCB stack designs using SFM-144-T2-FM-D-LC?
The LC (low-clearance) designation specifies a reduced above-board height for the SFM-144-T2-FM-D-LC, keeping the mated stack height below 5 mm. This compact profile is critical for portable electronics, wearable modules, and 1U rack line cards where minimizing board separation while routing 88 signals at 1.27 mm pitch is a design priority.
Which SAMTEC plug series are designed to mate with the SFM-144-T2-FM-D-LC for 88-position dual-row applications?
The SFM-144-T2-FM-D-LC mates with SAMTEC TSM-144 or SFM-144 series plugs at 1.27 mm pitch across 88 positions. These complementary plugs are rated for at least 30 mating cycles and offer contact resistance below 20 mOhm per pin, making them reliable for high-speed differential signaling applications above 1 Gbps.
When would a designer choose the SFM-144-T2-FM-D-LC over a standard fixed-mount socket at the same pitch?
A designer selects the SFM-144-T2-FM-D-LC over a fixed-mount socket when the board stack involves blind mating, press-in assembly, or mechanical tolerance buildup that prevents precise alignment of 88 contacts at 1.27 mm pitch. The floating mount absorbs up to ±0.25 mm lateral offset, significantly reducing insertion force and preventing contact damage in automated server blade and networking module assembly.
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