SFM-129-T2-H-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-129-T2-H-D-A-K is a 58-position dual-row high-reliability surface mount socket strip with 0.050" pitch, providing 58 signal channels in a compact PCB footprint for high-density interconnect applications. Key specs include dual-row 29x2 layout, gold-plated contacts, and surface mount termination compatible with automated SMT assembly. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 58
- Lifecycle
- ACTIVE
- Datasheet
- SFM-129-T2-H-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 (29x2) surface mount socket at 0.050" (1.27 mm) pitch delivering maximum interconnect density per unit area
- High-reliability construction with gold-plated contacts ensures low contact resistance and extended mating cycle performance
- Surface mount termination style supports standard pick-and-place and reflow soldering for high-volume automated PCB assembly
Applications
The SFM-129-T2-H-D-A-K is designed for high-density board-to-board interconnect in server backplanes, networking blades, and high-speed data acquisition systems requiring 58 signal channels in a space-efficient surface mount package. Its 0.050" pitch dual-row layout halves the connector length compared to 0.100" pitch alternatives, enabling tighter PCB component placement in storage controllers, FPGA evaluation boards, and embedded computing platforms. The connector is also widely used in modular RF and test equipment where repeatable high-cycle mating reliability is essential.
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 is the pin count and row configuration of SFM-129-T2-H-D-A-K, and how does the 0.050" pitch compare to standard connectors?
SFM-129-T2-H-D-A-K provides 58 positions arranged in a dual-row (29x2) format at a 0.050" (1.27 mm) pitch. Compared to standard 0.100" (2.54 mm) pitch connectors, this 0.050" pitch reduces the connector length by approximately 50%, enabling denser PCB layouts where 58 signal channels must be routed through a minimal board footprint.
For which types of PCB assembly processes is SFM-129-T2-H-D-A-K qualified, and what peak reflow temperature does it support?
SFM-129-T2-H-D-A-K uses surface mount termination, making it compatible with standard SMT reflow soldering processes at peak temperatures typically between 245°C and 260°C. The connector can be placed by pick-and-place equipment and processed on standard SMT lines alongside other surface mount devices, eliminating the need for secondary soldering steps for all 58 positions.
When would a design engineer select SFM-129-T2-H-D-A-K over a lower pin-count connector such as the SFM-122 in a server board design?
A design engineer would select SFM-129-T2-H-D-A-K when the interface requires 58 signal channels rather than the 44 provided by SFM-122, for example when connecting a processor module with additional address, data, or control lines that exceed a 44-pin budget. The 29x2 dual-row arrangement at 0.050" pitch keeps the 58-pin footprint compact, avoiding the need to split the interface across two separate lower-count connectors.
How does the gold-plated contact finish on SFM-129-T2-H-D-A-K affect connector reliability in repeated mating applications?
Gold-plated contacts maintain stable, low contact resistance across hundreds to thousands of mating cycles by resisting oxidation and fretting corrosion. For the 58 contacts in SFM-129-T2-H-D-A-K, this means consistent signal integrity in test fixture or hot-swap module applications where the connector is mated and unmated frequently, extending service life beyond what tin-plated alternatives provide.
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