SFM-105-T2-FM-D-LC-TR SAMTEC Connector (Other) In Stock
SFM-105-T2-FM-D-LC-TR is a 10-position dual-row high-reliability socket strip from SAMTEC on a 1.27 mm (0.050 inch) pitch with surface-mount termination, locking board mount, and tape-and-reel packaging. Gold-plated contacts provide low contact resistance across 100+ mating cycles.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SFM-105-T2-FM-D-LC-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-105-T2-FM-D-LC-TR?
- 10-position dual-row socket on 1.27 mm pitch offering compact 5-per-row signal density in a minimal SMT footprint
- High-reliability gold-plated contacts maintaining contact resistance below 30 mΩ over 100+ mating cycles
- Locking board mount (LC) posts anchoring the connector to the PCB under vibration and shock loading
- Tape-and-reel (-TR) packaging enabling automated pick-and-place assembly for high-volume SMT production
- Surface-mount reflow compatible up to 260°C peak temperature for single-pass lead-free assembly
What is SFM-105-T2-FM-D-LC-TR used for?
The SFM-105-T2-FM-D-LC-TR is used in compact module-to-carrier board interconnect where only 10 signals are needed at 1.27 mm pitch, such as small sensor daughter boards, configuration headers on FPGA modules, and low-pin-count mezzanine interfaces in space-constrained embedded systems. Its locking board mount prevents connector separation in portable instruments and industrial handheld devices subject to drop shock. Tape-and-reel delivery supports volume PCB assembly for wearable electronics, IoT edge modules, and medical sensor pods requiring a reliable yet minimal-footprint board-to-board socket.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-105-T2-FM-D-LC-TR datasheet?
SFM-105-T2-FM-D-LC-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-105-T2-FM-D-LC-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How compact is the PCB footprint of the SFM-105-T2-FM-D-LC-TR for a 10-position dual-row socket at 1.27 mm pitch?
At 1.27 mm pitch with 5 contacts per row, the SFM-105-T2-FM-D-LC-TR spans approximately 6.4 mm (5 x 1.27 mm) along each row, and the dual-row body adds 1.27 mm across the rows, giving a connector body of roughly 8 x 4 mm including housing margins. The locking board mount posts extend the keep-out zone by about 2 mm at each end, making the total reserved area approximately 12 x 5 mm — significantly smaller than an equivalent 2.54 mm pitch connector for the same 10 signals.
What is the mating cycle rating of the SFM-105-T2-FM-D-LC-TR and how does this affect its suitability for field-swappable sensor modules?
The SFM-105-T2-FM-D-LC-TR is rated for a minimum of 100 mating cycles with gold-plated contacts maintaining contact resistance below 30 mΩ. For field-swappable sensor modules that are replaced during annual maintenance intervals, 100 cycles corresponds to over 10 years of quarterly swaps, making the connector a suitable choice for sensors on industrial equipment or medical devices where reliability over the product service life is a procurement requirement.
Which application scenarios benefit from the locking board mount on the SFM-105-T2-FM-D-LC-TR versus a non-locking 10-pin socket?
The locking board mount on the SFM-105-T2-FM-D-LC-TR is most beneficial in handheld instruments, portable data loggers, and unmanned vehicle payloads that experience drop shock events of 50 g or higher and vibration environments above 2 g rms. Without the LC posts, the 10-position solder joint set alone must resist all mechanical forces, and at 1.27 mm pitch the joint cross-section is small enough that repeated shock can cause fatigue cracks within fewer than 1000 shock events; the LC posts extend fatigue life by shifting the dominant load path into the PCB material.
How does tape-and-reel packaging influence the minimum order quantity and feeder setup for the SFM-105-T2-FM-D-LC-TR?
The -TR suffix indicates tape-and-reel packaging, which is typically supplied on a standard 8 mm tape at reel quantities of 500 to 2000 pieces for this connector size. Reel packaging requires a compatible SMT feeder with a minimum feed pitch of 4 mm or 8 mm; setup takes approximately 5 minutes per feeder, but once loaded, the machine can place each connector in under 1 second per cycle, making it the preferred format when board volumes exceed 200 units and manual loading would become a production bottleneck.
Can the SFM-105-T2-FM-D-LC-TR be used in mixed-signal designs carrying both digital I/O and low-voltage analog signals on its 10 contacts?
Yes, the SFM-105-T2-FM-D-LC-TR is suitable for mixed-signal use with its 10 contacts allocated across digital I/O at 3.3 V or 5 V logic levels and analog signals at sub-1 V full-scale. The gold contact plating keeps contact resistance below 30 mΩ, which introduces less than 30 µV of error at 1 µA bias current — well within the noise floor of most 12-bit or 16-bit ADC front ends. Shielding and ground-contact allocation on adjacent pins within the 1.27 mm pitch array further reduce crosstalk between analog and digital signals.
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