SFM-143-T2-FM-D-LC SAMTEC Connector (Other) In Stock
SFM-143-T2-FM-D-LC is an 86-position dual-row high-reliability socket strip from SAMTEC with 1.27 mm (0.050 inch) pitch, female through-mount termination, and low-clearance design for dense mezzanine and embedded module board-to-board interfaces.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- SFM-143-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-143-T2-FM-D-LC?
- 86 positions in a dual-row 1.27 mm (0.050 inch) pitch layout providing high signal density for mezzanine card and embedded computing module sockets
- Female (FM) through-mount contacts with precision-stamped design ensuring low contact resistance across hundreds of mating cycles
- Low-clearance (LC) profile minimises board-to-board stacking height, enabling slim form-factor enclosures and tight inter-board gaps
- High-reliability contact construction rated for demanding environments including military, aerospace, and industrial operating temperatures from -55 °C to +125 °C
What is SFM-143-T2-FM-D-LC used for?
SFM-143-T2-FM-D-LC is commonly used in FPGA daughter card sockets, mezzanine expansion modules, and embedded computing carrier boards requiring an 86-pin interface at 1.27 mm pitch with through-mount mechanical retention. Its low-clearance design suits sealed industrial enclosures and portable avionics units where board stacking height is limited to a few millimetres. The connector is also deployed in high-channel-count data acquisition modules and signal conditioning boards that demand reliable low-resistance contact performance across the full military temperature range.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-143-T2-FM-D-LC datasheet?
SFM-143-T2-FM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-143-T2-FM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pin count and pitch does SFM-143-T2-FM-D-LC provide for mezzanine board interfaces?
SFM-143-T2-FM-D-LC delivers 86 total contacts in a dual-row arrangement at a 1.27 mm (0.050 inch) pitch, with 43 pins per row, accommodating wide data buses and differential signal pairs in a footprint roughly half the size of equivalent 2.54 mm pitch socket strips.
How does the through-mount (T2) termination of SFM-143-T2-FM-D-LC affect mechanical retention compared to surface-mount variants?
The through-mount T2 termination inserts contact tails through plated-through holes in the PCB and is soldered from the opposite side, providing stronger mechanical pull-out force than surface-mount pads — beneficial for mezzanine modules subject to shock loads above 50 g or vibration in aerospace and defence equipment.
What does the low-clearance (LC) designation specify for SFM-143-T2-FM-D-LC in stacked-board assemblies?
The LC designation limits the above-board connector profile to under 3 mm, enabling total board-to-board stacking heights of 5 mm or below when mated with a compatible 1.27 mm pitch header, which is essential for blade server, embedded-SOM, and compact avionics applications with strict vertical space budgets.
Which thermal range does SFM-143-T2-FM-D-LC support and what does it mean for harsh-environment deployments?
SFM-143-T2-FM-D-LC is rated for operating temperatures from -55 °C to +125 °C, allowing the connector to maintain reliable contact resistance of a few milliohms in environments ranging from arctic outdoor deployments to hot chassis-mounted industrial controllers and under-hood automotive test equipment.
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