SFM-127-T2-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-127-T2-LM-D-A-K-TR is a 54-position dual-row high-reliability surface-mount socket strip with 0.050" (1.27 mm) pitch. Rated at 1 A per contact and up to 150°C, it targets high-pin-count board-to-board interconnects in dense SMT designs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- SFM-127-T2-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 54-position (2×27) dual-row layout at 0.050" (1.27 mm) pitch consolidates 54 signals in a footprint roughly equivalent to a 27-position single-row 0.100" connector
- Contacts rated 1 A per pin and operating temperature up to 150°C ensure reliability in industrial, instrumentation, and ruggedised computing environments
- Tape-and-reel (TR) packaging with precision orientation supports automated pick-and-place at high production volumes with minimal manual handling
Applications
The SFM-127-T2-LM-D-A-K-TR is well suited for high-pin-count board-to-board or mezzanine connections in FPGAs, DSP daughtercards, industrial PLCs, and high-speed data acquisition modules. Its 54-position dual-row footprint at 0.050" pitch enables routing of 54 signals or mixed power-and-signal lines within a compact PCB area. The surface-mount termination and tape-and-reel supply format support fully automated SMT assembly, reducing placement cycle time in volume production.
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 contact count and row geometry of SFM-127-T2-LM-D-A-K-TR?
The SFM-127-T2-LM-D-A-K-TR provides 54 contacts arranged in a 2×27 dual-row pattern at 0.050" (1.27 mm) pitch. This configuration routes 54 signals in the same board length that a single-row 0.100" connector would need for only 27 signals, making it highly space-efficient.
At what operating temperature and per-contact current rating is SFM-127-T2-LM-D-A-K-TR qualified?
The SFM-127-T2-LM-D-A-K-TR is rated at 1 A per contact continuous current with an operating temperature range up to 150°C. These ratings cover most logic and low-power signal applications, though designers should derate to about 0.7 A per contact when multiple contacts simultaneously carry current to avoid localised heating.
How does SFM-127-T2-LM-D-A-K-TR compare to a 0.100" pitch connector when routing 54 signals on a constrained PCB?
At 0.050" (1.27 mm) pitch, the SFM-127-T2-LM-D-A-K-TR occupies roughly 34 mm of board length for 27 columns, whereas a 0.100" 2×27 connector would require about 68 mm. This 2× length reduction is critical for compact FPGA carrier cards or mezzanine boards where every millimetre of PCB real estate matters.
Which SAMTEC male headers mate with SFM-127-T2-LM-D-A-K-TR for a reliable SMT board-to-board stack?
The SFM series mates with SAMTEC's TFM, SHF, and compatible 0.050" (1.27 mm) pitch male header series. These mating headers are available in the same 2×27 configuration and multiple post lengths from 3 mm to 12 mm, allowing designers to select the precise board-to-board standoff height needed for their enclosure.
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