SFM-143-02-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-143-02-S-D-A-K is an 86-position dual-row surface mount socket strip with 0.050" (1.27 mm) pitch, designed for high-reliability board-to-board stacking with gold-plated contacts and a compact SMT profile. Providing 43 contacts per row, it is suited for dense signal routing in FPGA mezzanine, telecom, and embedded computing platforms. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- SFM-143-02-S-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 86-position dual-row configuration at 0.050" (1.27 mm) pitch delivers 43 contacts per row for high-density board-to-board signal routing in a compact surface mount footprint
- High-reliability gold-plated socket contacts ensure stable low-resistance mating across extended insertion-removal cycles in demanding FPGA and telecom mezzanine applications
- Surface mount termination style enables co-planar reflow soldering with other SMT components, eliminating a separate through-hole assembly step in volume PCB production
Applications
The SFM-143-02-S-D-A-K is used in FPGA mezzanine boards, high-speed data acquisition modules, and industrial computing daughtercards where 86 signal positions at 1.27 mm pitch provide sufficient contact density for mixed signal, differential pair, and power connections between stacked boards. Its dual-row SMT layout minimizes connector board area, supporting multi-board stack architectures in space-constrained rack servers and ruggedized embedded computing platforms. The high-reliability contact design maintains signal integrity over the thermal cycling and vibration typical of industrial and telecom equipment.
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 signal contacts does the SFM-143-02-S-D-A-K provide, and how are they arranged?
The SFM-143-02-S-D-A-K provides 86 contacts arranged in 2 rows at a 0.050" (1.27 mm) pitch, with 43 contacts per row. This configuration is well suited to routing large numbers of differential signal pairs, single-ended control signals, and power connections between a main PCB and a mezzanine daughtercard in FPGA or DSP-based system designs.
When would a designer choose the SFM-143-02-S-D-A-K over a larger 96-position SFM variant for a mezzanine interconnect?
A designer would select the 86-position SFM-143-02-S-D-A-K when the signal count budget falls below 86 pins and the shorter connector body better fits the available PCB routing channel between the mezzanine mounting zone and surrounding components. At 0.050" pitch, the 86-position body is approximately 2.15" long versus about 2.4" for a 96-position part, freeing up roughly 6 mm of board edge space for additional circuitry or mounting hardware.
What makes the SFM-143-02-S-D-A-K a high-reliability choice for telecom line card applications?
SAMTEC's SFM series uses gold-plated contacts rated for extended mating cycles, with the monolithic socket strip construction eliminating the inter-contact misalignment risk of assembling individual contacts. In telecom line card applications operating at ambient temperatures from -40°C to 85°C with frequent maintenance insertions, the gold plating prevents oxidation-related contact resistance rise and maintains signal integrity for differential pairs carrying multi-gigabit data streams at the 1.27 mm pitch interface.
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