SFM-129-02-SM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-129-02-SM-D-A-K is a 58-position dual-row high-reliability socket strip on a 0.050" pitch for surface mount applications. Designed for dense mezzanine and board-to-board connections with gold-plated contacts and SM-style termination. Ideal for FPGA, communications, and instrumentation systems requiring high channel counts.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 58
- Lifecycle
- ACTIVE
- Datasheet
- SFM-129-02-SM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 58-position dual-row socket on 0.050" (1.27 mm) pitch provides very high contact density in a compact SMT footprint
- SM (surface mount) termination style for straightforward solder reflow integration without through-hole drilling
- High-reliability gold-plated contacts deliver contact resistance below 20 milliohms and support thousands of mating cycles
- Dual-row layout maximizes signal channel count while minimizing the PCB area consumed by the connector
Applications
The SFM-129-02-SM-D-A-K is used in high-density FPGA mezzanine interfaces, multi-channel data acquisition modules, and communications line cards that require 58 reliable signal contacts at a fine 1.27 mm pitch. Its surface mount termination integrates cleanly into standard SMT reflow assembly workflows on dense PCB designs. The high-reliability construction supports operation in demanding industrial and instrumentation environments where extended service life is critical.
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 pin count and pitch does the SFM-129-02-SM-D-A-K provide for mezzanine applications?
The SFM-129-02-SM-D-A-K provides 58 contacts in a dual-row arrangement on a 0.050 inch (1.27 mm) pitch, enabling high-density mezzanine board interfaces that route 58 signal or power lines through a compact surface mount socket within a minimal PCB footprint.
How does SM termination on the SFM-129-02-SM-D-A-K simplify PCB manufacturing compared to through-hole connectors?
The SM (surface mount) termination of SFM-129-02-SM-D-A-K eliminates the need for through-hole drilling and wave soldering, allowing the connector to be placed and reflowed in the same standard SMT process as other PCB components, reducing manufacturing steps, tooling costs, and cycle time for 58-pin fine-pitch connector placement.
Which high-channel-count system designs are best served by the SFM-129-02-SM-D-A-K?
SFM-129-02-SM-D-A-K suits FPGA daughter cards with 58 or more I/O lines, high-speed ADC or DAC mezzanine modules, multi-channel RF switch control boards, and industrial data acquisition systems where 58 fine-pitch contacts at 1.27 mm pitch must fit within a compact PCB envelope without sacrificing signal integrity.
What reliability characteristics does the SFM-129-02-SM-D-A-K offer over extended service periods?
Rated as a high-reliability socket strip, SFM-129-02-SM-D-A-K features gold-plated contacts maintaining contact resistance typically below 20 milliohms across thousands of mating cycles and operating temperatures from -55°C to +125°C, ensuring sustained electrical performance in industrial, aerospace, and test and measurement environments.
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