SFM-125-T2-STL-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-T2-STL-D-A-K-TR is a 50-position dual-row surface mount socket strip at 0.050 inch pitch with gold-plated contacts, straight tail, polarization key, and tape-and-reel packaging. It delivers high-reliability board-to-board connectivity in a compact SMT footprint for automated assembly. Available from authorized distributors with in-stock inventory and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row layout at 0.050 inch pitch with polarization key for error-proof mating in dense interconnect applications
- STL straight tail length variant ensures co-planar SMT soldering of all 50 positions during automated reflow
- Tape-and-reel (TR) packaging enabling high-volume pick-and-place assembly at production line throughput
Applications
The SFM-125-T2-STL-D-A-K-TR is suited for daughter card attachment, mezzanine module connections, and high-density digital interface sockets in networking, industrial, and embedded computing designs. Its 50-position dual-row format at 0.050 inch pitch accommodates data bus, address, and control signal routing on compact PCBs where conventional 0.100 inch pitch connectors are too large.
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 total pin count and row configuration of the SFM-125-T2-STL-D-A-K-TR?
The SFM-125-T2-STL-D-A-K-TR has 50 total positions arranged in a dual-row format with 25 positions per row, all at a 0.050 inch (1.27 mm) pitch. Gold-plated contacts provide reliable low-resistance connections, and the polarization key prevents 180-degree mating errors that could reverse all 50 signal assignments.
How does tape-and-reel packaging on the SFM-125-T2-STL-D-A-K-TR benefit high-volume manufacturing?
The TR (tape-and-reel) suffix means parts arrive on 13-inch reels compatible with standard SMT pick-and-place feeders, enabling automated placement at rates exceeding 1,000 connectors per hour without manual handling. This packaging format also protects the 50-position socket's gold-plated contacts from contamination during storage and transport to the production line.
When would a design engineer select the SFM-125-T2-STL-D-A-K-TR over a 0.100 inch pitch alternative?
When board space is constrained and pin count requirements reach 50 or more signals, the 0.050 inch pitch SFM-125-T2-STL-D-A-K-TR occupies roughly half the PCB footprint of an equivalent 0.100 inch pitch dual-row connector. This trade-off is appropriate for mezzanine cards in compact enclosures, embedded single-board computers, and high-density I/O expansion modules where every square millimeter of board area is valuable.
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