SFM-141-T2-STL-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-141-T2-STL-D-A-K is an 82-position dual-row high-reliability surface-mount socket strip with 0.050-inch (1.27 mm) pitch and gold-plated female micro-terminal contacts. It offers secure low-insertion-force mating for high-cycle board-to-board applications. Available in stock from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 82
- Lifecycle
- ACTIVE
- Datasheet
- SFM-141-T2-STL-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 82-position dual-row layout on 1.27 mm pitch delivers dense board-to-board connectivity in a compact SMT footprint suitable for mezzanine and add-in card designs
- High-reliability gold-plated micro-terminal contacts rated for 200+ mate-unmate cycles with contact resistance below 20 milliohms
- T2 termination style and STL tail option provide additional soldering flexibility for non-standard PCB thickness and controlled-impedance stack-up configurations
Applications
The SFM-141-T2-STL-D-A-K is well suited for high-density board-to-board interconnect on FPGA mezzanine cards, test and measurement expansion modules, and industrial communication backplanes where 82 signals must be routed in minimal board space. Its 1.27 mm pitch SMT construction enables automated assembly and is compatible with lead-free reflow processes used in high-volume production. The high-reliability contact system also makes it appropriate for ruggedized embedded computing platforms operating in vibration-prone or thermally stressed environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SFM-141-T2-STL-D-A-K:
Board Connector, 82 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Locking, Black Insulator
Frequently Asked Questions
How many positions and at what pitch does the SFM-141-T2-STL-D-A-K provide, and what is the contact current rating?
The SFM-141-T2-STL-D-A-K provides 82 positions arranged in a dual row on a 1.27 mm (0.050-inch) pitch. Each gold-plated micro-terminal contact is rated to carry up to 1 A continuous current with a contact resistance below 20 milliohms, making it suitable for both signal and light power distribution across board-to-board interfaces.
What does the T2 termination style and STL suffix mean in the SFM-141-T2-STL-D-A-K part number?
In SAMTEC's SFM series, T2 denotes a specific SMT tail configuration that accommodates non-standard PCB thicknesses or alternate land pattern geometries, while STL indicates a straddle-mount or elongated tail variant designed for controlled-impedance PCB stack-ups. These options allow engineers to maintain 50-ohm or 100-ohm differential impedance without modifying the standard 1.27 mm pitch footprint.
For a compact industrial control card needing 82 signal lines, why choose the SFM-141-T2-STL-D-A-K over a 2.54 mm pitch alternative?
At 1.27 mm pitch, the SFM-141-T2-STL-D-A-K occupies roughly half the PCB length of an equivalent 2.54 mm pitch connector with 82 pins, freeing approximately 50 mm of board edge space for other components. The dual-row SMT design also eliminates through-hole drilling, reducing PCB fabrication cost while maintaining 200+ cycle reliability for field-serviceable industrial cards.
Is the SFM-141-T2-STL-D-A-K compatible with lead-free reflow soldering, and what peak temperature does it support?
Yes, the SFM-141-T2-STL-D-A-K is rated for lead-free SMT reflow soldering with a peak temperature tolerance of 260°C, conforming to IPC/JEDEC J-STD-020. The connector body can withstand up to 3 reflow passes without warping, making it compatible with double-sided SMT assembly processes common in high-density PCB production.
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