SFM-124-T2-STL-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-124-T2-STL-D-A-K is a 48-position dual-row high-reliability socket strip with 0.050-inch pitch and surface mount termination, offering dense low-profile module socket connections for high-performance embedded and instrumentation PCB designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- SFM-124-T2-STL-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 48-position dual-row 0.050-inch (1.27 mm) pitch configuration delivers twice the contact density of equivalent 0.100-inch connectors in the same board footprint
- STL (Straddle Mount) surface mount termination provides mechanical stability by straddling the PCB edge, combining through-board alignment with SMT soldering for robust retention
- High-reliability contact system supports extended mating cycle life suitable for removable module and daughtercard applications in instrumentation and industrial controls
Applications
The SFM-124-T2-STL-D-A-K is used in high-density PCB-edge socket applications for embedded computing modules, FPGA mezzanine cards, and test instrumentation daughter boards requiring 48 contacts at 0.050-inch pitch with straddle mount SMT termination. Its dual-row layout enables mixed analog and digital signal routing within a single compact connector. The high-reliability socket design suits aerospace, medical, and industrial electronics where consistent mating performance across hundreds of insertion cycles is required.
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 does the STL (straddle mount) termination style mean for the SFM-124-T2-STL-D-A-K on a PCB?
The STL designation means the SFM-124-T2-STL-D-A-K straddles the PCB edge, with SMT leads soldering to pads on both sides of the board edge. This provides superior mechanical retention compared to single-side surface mount, reducing connector movement under mating forces across all 48 positions on the 0.050-inch pitch interface.
How many contacts per row does the SFM-124-T2-STL-D-A-K provide and how does this help PCB routing?
The SFM-124-T2-STL-D-A-K is a dual-row connector with 24 contacts per row across its 48 total positions on a 0.050-inch pitch. Designers can assign one row to digital signals and the other to analog or power, simplifying routing and reducing PCB layer count compared to multiple single-row 0.100-inch connectors.
For which removable module applications is the SFM-124-T2-STL-D-A-K most suitable?
This 48-position 0.050-inch pitch socket is suited for FPGA mezzanine module sockets, instrument plug-in modules, and embedded processor daughtercard interfaces where repeated module insertion and removal is expected. The high-reliability contact system ensures stable electrical performance over hundreds of mating cycles without significant increase in contact resistance.
How does the 0.050-inch pitch of the SFM-124-T2-STL-D-A-K benefit space-constrained board designs versus larger pitch alternatives?
At 0.050-inch (1.27 mm) pitch, the SFM-124-T2-STL-D-A-K fits 48 positions in approximately the same linear board space as a 24-position 0.100-inch connector. This halves the connector length required on the PCB edge, freeing board area for other components in dense instrumentation, aerospace, and industrial control card designs.
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