SFM-140-L2-S-D SAMTEC Connector (Other) In Stock
SAMTEC SFM-140-L2-S-D is an 80-position dual-row high-reliability surface mount socket strip with 0.050 inch (1.27 mm) pitch, featuring Tiger Eye contacts with 30 µin gold over 50 µin nickel plating for exceptional mating cycle durability. From $1.00 in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- SFM-140-L2-S-D 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
- 80-position dual-row socket at 1.27 mm (0.050 inch) pitch with Tiger Eye contact technology delivers low insertion force and superior mating cycle life compared to standard bifurcated contacts
- Gold (30 µin) over nickel (50 µin) contact finish ensures stable low-resistance mating below 20 mΩ even in harsh environments with humidity and mild contamination
- E.L.P. enhanced lead profile and surface mount termination with 2.015 inch body length enable precise automated placement and consistent solder joint integrity across all 80 positions
Applications
The SFM-140-L2-S-D is designed for high-reliability mezzanine and daughter-card socket applications in military, aerospace, and industrial instrumentation systems where the connector may be mated and unmated hundreds of times over its service life. Its 80-position dual-row layout handles high-density I/O at 1.27 mm pitch, supporting mixed digital, analog, and low-power supply connections within a 2.015 inch body length. The Tiger Eye contact design and 30 µin gold plating make it particularly suitable for mission-critical boards that cannot tolerate intermittent contact failures.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 6 Weeks, 2 Days |
| YTEOL | 9.4 |
| Additional Feature | E.L.P., TIGER EYE CONTACT |
| Body Breadth | 0.095inch |
| Body Depth | 0.185inch |
| Body Length | 2.015inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | BERYLLIUM COPPER |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Durability | 10000Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | .3892N |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| 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 | 2.7432mm |
| Plating Thickness | 30u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 3.2A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 80 |
| Withdrawl Force-Min | .278N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the Tiger Eye contact technology in SFM-140-L2-S-D and how does it improve mating reliability over standard bifurcated contacts?
Tiger Eye contacts use a four-point wiping contact geometry that distributes mating force across 4 contact points per pin instead of 2. This reduces insertion force on each pin by approximately 40% while increasing contact redundancy, providing reliable electrical connection even after 500 or more mating cycles — critical for test-and-measurement sockets and field-replaceable modules.
What contact plating specification does the SFM-140-L2-S-D use and what mating cycles does the 30 µin gold support?
Contacts are plated with 30 µin of gold over 50 µin of nickel. The 30 µin gold thickness, compared to the industry-standard 15 µin, extends reliable low-contact-resistance performance to over 500 mating cycles, maintaining contact resistance below 20 mΩ throughout the connector's service life.
How does the 0.050 inch pitch of the SFM-140-L2-S-D affect PCB trace routing compared to a 2.54 mm pitch socket?
At 1.27 mm (0.050 inch) pitch, the 80-position dual-row socket spans a body length of 2.015 inches (approximately 51.2 mm). A comparable 2.54 mm pitch socket for 80 positions would require roughly 102 mm of length — meaning the SFM-140-L2-S-D saves nearly 51 mm of PCB real estate for the same signal count.
What lead time should procurement expect for the SFM-140-L2-S-D and how does this affect project planning?
The factory lead time for SFM-140-L2-S-D is approximately 6 weeks and 2 days. For programs with a 12-week hardware bringup schedule, orders should be placed at the start of the design phase to ensure connectors arrive before PCB assembly, avoiding a 6-week slip to the first prototype build.
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