SFM-117-02-STL-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-117-02-STL-D-A-K is a 34-position, 0.050" (1.27 mm) pitch dual-row high-reliability surface mount socket strip with extended tail length. Gold-plated contacts rated 150V AC and 1A per pin. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 34
- Lifecycle
- ACTIVE
- Datasheet
- SFM-117-02-STL-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 34 positions at 0.050" (1.27 mm) pitch in dual-row configuration delivering high contact density in compact SMT footprints
- STL extended tail length enhances solder joint formation and provides additional mechanical compliance during thermal cycling from -55°C to +125°C
- High-reliability gold-plated contacts rated 150V AC and 1A per contact with contact resistance below 20 mΩ for stable signal integrity
- Surface mount design supports automated reflow at 260°C peak and is compatible with standard pick-and-place equipment for high-volume production
Applications
SFM-117-02-STL-D-A-K is designed for high-density mezzanine card interconnects, FPGA daughter board sockets, and RF module installations requiring 34 signals at 1.27 mm pitch in a surface mount form factor. The extended tail length (STL) improves solder joint reliability in applications subjected to thermal cycling and mechanical shock, such as avionics sub-assemblies, test instrument mainboards, and compact server blade modules. Its dual-row socket format enables stackable board architectures while maintaining a minimal PCB footprint under 25 mm in connector length.
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 contact density and pitch does the SFM-117-02-STL-D-A-K provide for high-speed signal routing?
The SFM-117-02-STL-D-A-K offers 34 positions in a dual-row layout at 0.050" (1.27 mm) pitch, fitting a PCB footprint of approximately 22 mm x 3.3 mm. This fine pitch supports routing of differential pairs, LVDS buses, and high-speed data lines at frequencies exceeding 1 GHz, making it well-suited for FPGA I/O headers and SDR module sockets where signal density is critical.
What does the STL tail designation mean for the soldering and mechanical performance of SFM-117-02-STL-D-A-K?
STL in SFM-117-02-STL-D-A-K specifies an extended solder tail length compared to the standard tail option, providing greater solder fillet height and increased joint compliance. In applications cycled between -55°C and +125°C, the longer tail reduces stress concentration at the solder joint interface, extending fatigue life. This makes the STL variant preferred for industrial instrumentation and aerospace electronics requiring long-term reliability exceeding 2000 thermal cycles.
What are the electrical ratings of each pin in the SFM-117-02-STL-D-A-K, and is it suitable for mixed signal applications?
Each of the 34 pins in the SFM-117-02-STL-D-A-K is rated at 150V AC working voltage and 1A continuous current. The gold-plated contact surface maintains resistance below 20 mΩ over the rated -55°C to +125°C range, making the connector suitable for mixed analog-digital boards where low-noise signal integrity and low-voltage power distribution across 3.3V and 5V rails are required simultaneously.
How does the SFM-117-02-STL-D-A-K compare to the SFM-117-02-S-D-A-K standard tail version?
The SFM-117-02-STL-D-A-K and SFM-117-02-S-D-A-K share identical 34-position, 0.050" pitch dual-row layouts and 1A per pin, 150V AC ratings, but differ in solder tail length. The STL version provides a longer tail extending by approximately 0.5 mm to 1.0 mm beyond the PCB surface, improving solder joint formation on thicker boards and increasing compliance in thermal cycling environments. The standard tail version is preferred when component height is tightly constrained.
Which mating header series is compatible with the SFM-117-02-STL-D-A-K, and can it accept through-hole headers?
The SFM-117-02-STL-D-A-K is designed to mate with SAMTEC's SSM, TSM, and SSW series headers at 0.050" (1.27 mm) pitch in dual-row configurations. Both surface mount SSM headers and through-hole TSM headers at 34 positions are compatible, enabling flexible board-to-board stacking configurations. The socket strip accepts male headers with 0.016" to 0.025" square posts, covering standard SAMTEC header post dimensions.
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