SFM-122-L2-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-122-L2-S-D-A-K is a 44-position dual-row high-reliability socket strip with 0.050 inch pitch and Tiger Eye contact technology, featuring 30 micro-inch gold mating contacts and a surface mount board connector design for demanding high-cycle interconnect applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- SFM-122-L2-S-D-A-K Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 44-position dual-row socket with 0.050 inch (1.27 mm) pitch for ultra-dense board-to-board connections
- Tiger Eye contact design provides high normal force for reliable low-resistance mating across extended lifecycle
- 30 micro-inch gold contact finish on mating surfaces ensures corrosion resistance and signal integrity
- PEG board mounting option for mechanical stability during assembly and mating operations
Applications
The SFM-122-L2-S-D-A-K is used in high-reliability board-to-board socket applications including FPGA mezzanine modules, rugged military and aerospace daughtercard assemblies, and industrial computing platforms where 44 high-density connections are required. The Tiger Eye contact mechanism and 30 micro-inch gold plating ensure stable contact resistance over hundreds of mating cycles in high-vibration or field-service environments. Its compact 1.175 inch body length accommodates dense PCB layouts in space-critical embedded system designs.
Specifications
| YTEOL | 9.4 |
| Additional Feature | TIGER EYE CONTACT |
| Board Mounting Option | PEG |
| Body Breadth | 0.145inch |
| Body Depth | 0.185inch |
| Body Length | 1.175inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.7178mm |
| Plating Thickness | 30u inch |
| Rated Current (Signal) | 3.2A |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 44 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the SFM-122-L2-S-D-A-K use and why does it matter for signal reliability?
The SFM-122-L2-S-D-A-K uses a 30 micro-inch gold contact finish on the mating interface, with a tin over nickel barrier on the termination side. The 30 micro-inch gold plating provides superior corrosion resistance and low contact resistance across hundreds of mating cycles, which is critical for high-frequency signal integrity in applications such as FPGA expansion boards and high-speed data acquisition systems.
What is the Tiger Eye contact technology in SFM-122-L2-S-D-A-K and how does it improve connector performance?
Tiger Eye is a SAMTEC proprietary contact design that uses a dual-beam wiping action to achieve high normal force and reliable electrical contact. In the SFM-122-L2-S-D-A-K, this technology ensures consistent low resistance connections even after repeated mating cycles, vibration exposure, or thermal cycling, making it well suited for rugged industrial and defense applications requiring more than 100 mate-unmate cycles.
How many positions and what pitch does the SFM-122-L2-S-D-A-K provide for board-level interconnects?
The SFM-122-L2-S-D-A-K provides 44 positions in a dual-row layout with 0.050 inch (1.27 mm) pitch, giving 22 contacts per row. The body measures 1.175 inches long by 0.145 inches wide, supporting high-density PCB routing. This fine 0.050 inch pitch allows 44 signals in a footprint comparable to a 22-position 0.100 inch pitch connector.
Does the SFM-122-L2-S-D-A-K include a board mounting peg and what assembly benefit does this provide?
Yes, the SFM-122-L2-S-D-A-K includes a PEG board mounting option that provides mechanical registration to the PCB during soldering and mating. The mounting peg prevents the connector from shifting during reflow soldering, improving placement accuracy for the fine 0.050 inch pitch contacts. It also adds mechanical support to resist pull-out forces during plug-in operations in field-serviceable equipment.
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