SFM-126-02-STL-D-A-K-TR SAMTEC Connector (Other) In Stock
The Samtec SFM-126-02-STL-D-A-K-TR is a 52-position dual-row high-reliability socket strip with 1.27 mm (0.050 inch) pitch in a surface-mount package. It features stainless-steel latching hardware for secure mating, gold-plated contacts, and tape-and-reel packaging for automated assembly. Available from stock worldwide for high-density board-to-board interconnection.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 52
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 52 positions in a dual-row 1.27 mm (0.050 inch) pitch for high-density surface-mount interconnection
- Stainless-steel latch (STL) hardware provides secure mechanical retention and prevents accidental unmating under vibration
- Gold-plated contacts ensure low contact resistance and reliable signal integrity for fine-pitch board-to-board applications
- Tape-and-reel (TR) packaging supports high-volume automated pick-and-place SMT assembly
Applications
The SFM-126-02-STL-D-A-K-TR is designed for high-density board-to-board and mezzanine interconnection in compact electronic assemblies such as portable instruments, embedded computing modules, and RF boards. Its 1.27 mm pitch and dual-row layout allow 52 signals to be routed in a minimal PCB footprint, supporting data buses, control signals, and mixed power lines. The stainless-steel latch ensures reliable mated retention in applications subject to mechanical shock or vibration.
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 pitch and position count does the SFM-126-02-STL-D-A-K-TR provide for high-density board-to-board connections?
The SFM-126-02-STL-D-A-K-TR provides 52 positions at a 1.27 mm (0.050 inch) pitch in a dual-row surface-mount configuration. This fine pitch allows 26 contacts per row, enabling designers to route high-speed data buses or mixed signal-and-power interfaces in a footprint approximately 33 mm long, making it suitable for compact mezzanine and module-to-baseboard applications.
How does the stainless-steel latch (STL) in SFM-126-02-STL-D-A-K-TR improve connector reliability in vibration environments?
The stainless-steel latch mechanism in the SFM-126-02-STL-D-A-K-TR provides positive mechanical retention that prevents the mated connector pair from separating under shock or vibration loads. Unlike simple friction-fit socket strips, the latch maintains contact normal force across the 52 positions even when the PCB assembly is exposed to transportation or in-field mechanical disturbances, reducing the risk of intermittent signal loss in industrial and portable applications.
Which Samtec header series mates with SFM-126-02-STL-D-A-K-TR in a board-to-board stack?
The SFM series mates with Samtec's SFML or SFMH header strips at the same 1.27 mm pitch and matching 52-position dual-row footprint. The mating header series determines the stack height between boards, typically available in increments from 4 mm to 20 mm. Selecting the correct mating header height is essential during PCB layout to accommodate component clearances in the board-to-board gap.
Does SFM-126-02-STL-D-A-K-TR support standard SMT reflow soldering, and what packaging format ships in volume?
Yes. The SFM-126-02-STL-D-A-K-TR uses surface-mount termination compatible with reflow soldering at up to 260 °C peak temperature per IPC J-STD-020. It ships in tape-and-reel (TR) format, which is directly compatible with standard pick-and-place machines used in volume SMT production. The tape-and-reel format reduces handling damage to the fine 1.27 mm pitch contacts during automated placement.
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