SFM-125-L2-FM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-L2-FM-D-A-K-TR is a 50-position dual-row high-reliability socket strip with 0.050" pitch for surface-mount assembly. It supports tape-and-reel packaging and gold-plated contacts for extended mating cycles. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- SFM-125-L2-FM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row layout on 0.050 inch (1.27 mm) pitch enabling very high contact density in a minimal PCB area
- High-reliability socket design rated for extended mating cycles with gold-plated contacts ensuring consistent low-resistance connections
- Tape-and-reel (TR) packaging for seamless integration into automated high-volume SMT production lines
Applications
The SFM-125-L2-FM-D-A-K-TR is used in high-density board-to-board and mezzanine connector applications where 50 contacts must fit within a 0.050-inch pitch footprint. Its high-reliability rating makes it suitable for aerospace, defense, and industrial electronics requiring consistent signal integrity over thousands of mating cycles. The surface-mount format supports modern automated PCB assembly processes in compact, multi-layer board designs.
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 contact pitch of the SFM-125-L2-FM-D-A-K-TR and how does it compare to standard 0.100-inch connectors?
The SFM-125-L2-FM-D-A-K-TR uses a 0.050-inch (1.27 mm) pitch, which is half the spacing of standard 0.100-inch connectors. This finer pitch allows 50 dual-row contacts to occupy roughly the same PCB length as a 25-position 0.100-inch strip, making it ideal for space-constrained high-density designs.
For which reliability-demanding applications is the SFM-125-L2-FM-D-A-K-TR specifically rated?
The SFM series is SAMTEC's high-reliability socket strip line, designed to withstand mating cycles exceeding 500 insertions while maintaining contact resistance below 20 milliohms. It is used in aerospace avionics, military electronics, and industrial instrumentation where connector failure is not acceptable over the product lifetime.
Does the SFM-125-L2-FM-D-A-K-TR support tape-and-reel delivery, and what does this mean for production quantities?
Yes, the TR suffix confirms tape-and-reel packaging, which is compatible with automated SMT pick-and-place machines handling 0.050-inch pitch components. Reels typically contain 500 to 1000 pieces, supporting medium-to-high production volumes while reducing manual placement errors and setup time.
What mating connector from SAMTEC is designed to pair with the SFM-125-L2-FM-D-A-K-TR in a board-to-board stack?
The SFM series female socket strips mate with SAMTEC SHF or SFM-compatible male header strips sharing the same 0.050-inch pitch and 50-position dual-row layout. A typical board-to-board stack height ranges from 4 mm to 20 mm depending on the selected header pin length and standoff configuration.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”