SFM-122-L2-F-D-A-K SAMTEC Connector (Other) In Stock
The SFM-122-L2-F-D-A-K is a Samtec 44-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in a surface mount configuration. It delivers 88 contacts total for fine-pitch board-to-board mating in demanding electronics. Available from authorized global distributors with worldwide shipping options.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- SFM-122-L2-F-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 88-contact (44 positions x 2 rows) 0.050" (1.27 mm) pitch socket strip designed for high-density SMT board-to-board interconnections
- High-reliability contact system rated for 500 or more mating cycles with consistent electrical performance from -55°C to +125°C
- Female (F) contact gender with horizontal (L2) lead style allows low-profile surface mount assembly using standard reflow solder processes
Applications
The SFM-122-L2-F-D-A-K serves high-density mezzanine card sockets, FPGA module interfaces, and PCB stacking applications that require 88 pins in a fine 1.27 mm pitch footprint. Its dual-row surface mount design allows reliable parallel bus and power routing between stacked PCBs in industrial control, defense electronics, and telecommunications equipment. The high-reliability specification ensures stable contact resistance across thermal cycling and vibration conditions common in aerospace and ruggedized industrial platforms.
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 contact count and pitch does the SFM-122-L2-F-D-A-K offer for board stacking designs?
The SFM-122-L2-F-D-A-K provides 88 contacts in a dual-row arrangement with 44 positions per row at a 0.050 inch (1.27 mm) pitch. This fine-pitch dual-row configuration allows designers to route wide data buses and power connections between stacked PCBs while occupying less board area than comparable 2.0 mm or 2.54 mm pitch alternatives.
How does the high-reliability rating of the SFM-122-L2-F-D-A-K differ from standard commercial socket strips?
The high-reliability specification means the SFM-122-L2-F-D-A-K is validated for 500 or more mating cycles while maintaining contact resistance below specified limits, and for operation across extended temperature ranges from -55°C to +125°C. Standard commercial grade connectors are typically rated for 30 to 100 mating cycles and narrower temperature ranges of 0°C to +70°C.
What does the L2-F designation tell PCB designers about mounting and contact orientation of the SFM-122-L2-F-D-A-K?
L2 denotes a horizontal lead style designed for surface mount assembly where the connector lies flat on the PCB, with leads soldered to surface pads in a standard reflow process at peak temperatures up to 260°C. The F indicates female contact gender, meaning this socket accepts male pin headers or board stacking pin connectors with compatible 0.050 inch pitch.
In which procurement scenarios should an engineer consider the SFM-122-L2-F-D-A-K over lower-reliability alternatives?
Engineers should select the SFM-122-L2-F-D-A-K when the end system must meet MIL-spec, DO-160, or IEC 61373 vibration and shock requirements, or when field replacement intervals exceed 200 mating cycles per unit. For standard commercial applications with fewer than 50 mating cycles and operating temperatures between 0°C and +70°C, a standard commercial-grade 88-pin socket would provide adequate performance at lower cost.
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