SFM-124-L2-H-D-A-K-TR SAMTEC Connector (Other) In Stock
SFM-124-L2-H-D-A-K-TR is a 48-position dual-row surface-mount socket strip from SAMTEC with 1.27 mm (0.050") pitch designed for high-reliability board-to-board mating. It features gold-plated contacts for low-resistance interconnects and tape-and-reel packaging for automated SMT assembly. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- SFM-124-L2-H-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 48 positions (2x24) at 1.27 mm (0.050 inch) pitch enables dense dual-row board-to-board interconnect in minimal footprint
- Surface-mount termination with tape-and-reel (-TR) packaging supports high-volume automated pick-and-place SMT assembly
- High-reliability SAMTEC SFM series with gold-plated contacts ensures consistent low-contact-resistance mating across thousands of cycles
- Dual-row layout mates with SFH series headers, providing 48 signal or power channels in a single compact connector
Applications
The SFM-124-L2-H-D-A-K-TR is used in high-density board-to-board stacking applications such as mezzanine modules, FPGA daughter cards, and SDR platforms where 48 signals must be routed across two boards at 1.27 mm pitch. Its surface-mount footprint and tape-and-reel format suit mass-production PCB assemblies in telecom, defense, and test instrumentation. The high-reliability rating makes it appropriate for rugged environments that demand consistent contact integrity over extended operating life.
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
How many positions does SFM-124-L2-H-D-A-K-TR provide and what is its contact pitch?
The SFM-124-L2-H-D-A-K-TR provides 48 positions arranged in 2 rows of 24 contacts at a 1.27 mm (0.050 inch) pitch. This dual-row layout allows routing of up to 48 signal or power lines between two boards in a footprint of approximately 30 mm x 4 mm.
Is SFM-124-L2-H-D-A-K-TR suitable for automated SMT assembly lines?
Yes. The -TR suffix indicates tape-and-reel packaging compatible with standard SMT pick-and-place equipment. The surface-mount termination style reflows at standard 260°C peak profiles, and the 1.27 mm pitch meets IPC-7351 land pattern guidelines for reliable solder joint formation on two-layer or multilayer PCBs.
Which mating header does SFM-124-L2-H-D-A-K-TR pair with for a board-to-board stack?
SFM series sockets mate with SAMTEC SFH series headers sharing the same 1.27 mm pitch and 2-row configuration. A matching SFH-124 header on the second board completes a 48-pin board-to-board interface with gold-to-gold contact mating rated for hundreds of engagement cycles and typical contact resistance below 20 mΩ per contact.
What board-stacking height does the L2-H option provide in the SFM-124-L2-H-D-A-K-TR?
The L2-H option specifies a longer post height compared to the standard profile, providing a board-stacking clearance of approximately 8 mm to 10 mm between mated PCBs. This clearance accommodates through-hole components or heat sinks on the mating board that would otherwise prevent a low-profile 4 mm stack configuration.
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