SFM-149-T2-FM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-149-T2-FM-D-A-P-TR is a 98-position dual-row high-reliability surface mount socket strip with 0.050" (1.27 mm) pitch, engineered for dense, high-integrity board-to-board signal routing. The FM termination variant provides flush-mount solder tails suitable for controlled-impedance designs. Available in tape-and-reel packaging for high-volume SMT production; in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- SFM-149-T2-FM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-149-T2-FM-D-A-P-TR?
- 98 contacts in dual-row arrangement on 0.050" (1.27 mm) pitch enabling maximum signal density per unit PCB area
- FM (flush-mount) termination ensures uniform solder joint height for consistent controlled-impedance signal paths
- Gold-plated contacts deliver low contact resistance and corrosion protection for millions of reliable mating cycles
- Tape-and-reel (TR) delivery supports high-throughput automated pick-and-place SMT manufacturing processes
What is SFM-149-T2-FM-D-A-P-TR used for?
The SFM-149-T2-FM-D-A-P-TR is designed for high-density mezzanine card, daughter-card, and FPGA expansion interfaces where 98 signals must be routed across a board boundary at 0.050" pitch. It is commonly specified in data acquisition systems, communications infrastructure modules, and embedded computing platforms requiring compact, high pin-count interconnects. The flush-mount termination style is preferred in designs sensitive to solder joint height variation, such as high-frequency analog or RF front-end boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-149-T2-FM-D-A-P-TR datasheet?
SFM-149-T2-FM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-149-T2-FM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the FM termination style on the SFM-149-T2-FM-D-A-P-TR, and why does it matter for signal integrity?
FM stands for flush-mount, meaning the solder tails are trimmed to a uniform height that sits flush with the PCB pad surface after reflow. This consistent termination geometry minimizes variations in stub length — an important factor for signal integrity in high-speed differential pairs operating above 500 MHz, as longer stubs can introduce reflections that degrade eye diagrams on 98-contact, 0.050" pitch interfaces.
How many signal connections can the SFM-149-T2-FM-D-A-P-TR carry in a dual-row configuration?
The SFM-149-T2-FM-D-A-P-TR provides 98 contacts split across 2 rows of 49 contacts each, on a 1.27 mm (0.050") pitch. This allows routing up to 98 individual signals — or fewer signals with dedicated ground returns — making it suitable for wide parallel buses, such as 64-bit data paths with address and control lines, in a single compact SMT connector.
For FPGA daughter-card designs, how does the SFM-149-T2-FM-D-A-P-TR compare to similar 0.100" pitch connectors?
Compared to 0.100" pitch connectors carrying the same 98 contacts, the SFM-149-T2-FM-D-A-P-TR reduces connector body length by roughly 50%, from about 124 mm down to approximately 63 mm. This space savings is essential on FPGA mezzanine boards conforming to FMC (FPGA Mezzanine Card) standards, where PCB area is shared between high-density I/O, power planes, and RF or analog circuits.
Is the SFM-149-T2-FM-D-A-P-TR suitable for automated assembly, and what packaging does it use?
Yes, the SFM-149-T2-FM-D-A-P-TR is packaged in tape-and-reel (TR) format, making it directly compatible with automated pick-and-place SMT machines. The surface mount footprint supports standard reflow profiles up to 260°C per IPC/JEDEC lead-free solder specifications. This packaging is efficient for production quantities and reduces handling-induced contact damage common with loose-tube or tray packaging.
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