SFM-129-L2-SM-D-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-129-L2-SM-D-K-TR is a 58-position dual-row surface-mount socket strip with 0.050" (1.27 mm) pitch, offering high-reliability contacts for dense board-to-board connections. Designed for automated SMT assembly processes. Available from distributors worldwide with stock for immediate shipment.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 58
- Lifecycle
- ACTIVE
- Datasheet
- SFM-129-L2-SM-D-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 58-position dual-row layout on 0.050" (1.27 mm) pitch for high signal-count board-to-board connections in compact spaces
- Surface-mount termination compatible with standard reflow soldering up to 260°C for streamlined PCB assembly
- High-reliability construction with gold-plated contacts sustaining consistent low resistance across multiple mating cycles
- Tape-and-reel packaging optimized for high-volume automated pick-and-place SMT manufacturing
Applications
The SFM-129-L2-SM-D-K-TR is suited for high-density mezzanine interconnects in embedded computing, industrial control, and communications equipment requiring 58 signal paths between stacked PCBs. Its compact 0.050" pitch footprint allows engineers to route parallel data buses and control signals without consuming excessive board area. This connector is a strong choice for FPGA modules, data acquisition boards, and test equipment daughtercards.
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 position count and pitch specification of the SFM-129-L2-SM-D-K-TR?
The SFM-129-L2-SM-D-K-TR features 58 positions arranged in 2 rows of 29 contacts each, with a 0.050" (1.27 mm) center-to-center pitch. This compact geometry allows 58 reliable signal connections within a smaller PCB footprint compared to standard 0.1" pitch connectors of equivalent pin count.
Can the SFM-129-L2-SM-D-K-TR survive multiple board mating and de-mating cycles in a test fixture?
Yes. SAMTEC's SFM series high-reliability socket strips are engineered for repeated mating cycles, with gold-plated contacts maintaining low contact resistance across dozens of insertions. At a 0.050" pitch and 58 positions, this part suits test fixtures where boards are frequently swapped, helping engineers reduce contact wear over the equipment's service life.
How does the SFM-129-L2-SM-D-K-TR fit into an automated SMT assembly line?
The part's surface-mount termination and tape-and-reel (TR) packaging allow direct integration with pick-and-place machines feeding standard SMT reflow ovens at peak temperatures around 260°C. With 58 positions on a 1.27 mm pitch, placement tolerances must be tightly controlled, and the TR format ensures consistent component orientation for reliable automated board population at high volume.
What embedded system applications benefit most from a 58-position 0.050" pitch dual-row SMT socket?
Applications such as FPGA carrier boards, DSP signal processing mezzanines, industrial I/O expansion modules, and data acquisition daughtercards typically use 58-position dual-row SMT sockets like this one. These systems need to transfer dozens of parallel signals between boards while keeping the connector footprint under 40 mm long, which the 0.050" pitch configuration enables without sacrificing signal count.
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