SFM-123-T2-SM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-T2-SM-D-A-P-TR is a 46-position dual-row high-reliability socket strip with 0.050" pitch for surface mount board-to-board applications. It features gold-plated contacts rated at 2A per pin and operates from -55°C to +125°C for demanding environments. Available in tape-and-reel packaging for automated SMT production.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-T2-SM-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-123-T2-SM-D-A-P-TR?
- 46-position dual-row layout at 0.050" (1.27 mm) pitch delivering high signal density for compact surface mount mezzanine interconnect designs
- Gold-plated contacts with 2A per pin rating supporting reliable electrical performance across extensive mating cycles in high-reliability applications
- Tape-and-reel (TR) packaging enabling automated pick-and-place assembly for high-volume SMT reflow production at up to 260°C
What is SFM-123-T2-SM-D-A-P-TR used for?
The SFM-123-T2-SM-D-A-P-TR is designed for high-density mezzanine and board-to-board interconnect in embedded computing modules, FPGA interface cards, and industrial control systems requiring 46 signals at 0.050" pitch. Its compact surface mount construction supports automated SMT assembly on multi-layer PCBs, simplifying manufacturing for production volumes where manual connector insertion would be impractical. The -55°C to +125°C operating range also makes it appropriate for rugged electronics in transportation, energy, and defense applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-123-T2-SM-D-A-P-TR datasheet?
SFM-123-T2-SM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-123-T2-SM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many contacts and rows does SFM-123-T2-SM-D-A-P-TR provide, and what is the pitch?
SFM-123-T2-SM-D-A-P-TR provides 46 contacts arranged in a dual-row configuration at 0.050" (1.27 mm) pitch, with 23 contacts per row. This compact dual-row layout allows designers to route 46 signals or mixed power-signal lines in roughly half the PCB footprint required by an equivalent 0.100" pitch connector.
For a ruggedized rail transportation module, does SFM-123-T2-SM-D-A-P-TR meet EN 50155 temperature requirements?
SFM-123-T2-SM-D-A-P-TR operates from -55°C to +125°C, which exceeds the EN 50155 railway electronics temperature class T1 requirement of -25°C to +70°C and class T2 of -40°C to +85°C. The connector's gold-plated contacts maintain stable contact resistance across this range, supporting reliable signal integrity in train control and passenger information system electronics.
When carrying 2A per pin, how many SFM-123-T2-SM-D-A-P-TR pins are needed to deliver a 5V, 10A power rail to a mezzanine module?
At 2A per pin, 5 pins paralleled together on SFM-123-T2-SM-D-A-P-TR provide 10A at 5V, leaving the remaining 41 contacts available for signal routing. This mixed power-and-signal allocation is typical in FPGA mezzanine cards and DSP modules where a dedicated subset of 4 to 8 pins supplies the module's core voltage while the rest carry high-speed data lanes.
How does the T2 designation in SFM-123-T2-SM-D-A-P-TR affect the connector's tail length compared to a standard SFM series part?
The T2 designation in SFM-123-T2-SM-D-A-P-TR indicates a specific tail or post length option within SAMTEC's SFM series, typically offering a longer SMT tail of approximately 2.03 mm compared to the standard T1 length. This extended tail improves solder fillet formation on thicker PCB copper layers and provides greater coplanarity tolerance during reflow, reducing solder joint defects in high-volume SMT assembly of boards with 6 or more copper layers.
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