SFM-120-L2-S-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-120-L2-S-D-LC is a 40-position dual-row high-reliability socket strip at 1.27 mm (0.050 inch) pitch with Tiger Eye contacts and surface mount termination. Features 30 micro-inch gold-plated mating contacts and tin-nickel barrier termination for superior corrosion resistance. Available from stock worldwide with same-day shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- SFM-120-L2-S-D-LC 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
- 40-position dual-row Tiger Eye socket strip at 1.27 mm (0.050 inch) pitch for ultra-high-density SMT mezzanine card connections
- 30 micro-inch gold contact finish on mating interface with tin-nickel barrier termination for long-term corrosion resistance and reliable solderability
- High-reliability construction with 9.4-year end-of-life rating, compatible with automated SMT reflow at 260 °C for high-volume production
Applications
The SFM-120-L2-S-D-LC is ideal for high-density mezzanine and daughter card sockets in aerospace avionics, military embedded computing, and telecom line cards requiring reliable 1.27 mm pitch interconnects at 40 positions. Its Tiger Eye dual-beam contact design accommodates PCB coplanarity tolerances, ensuring consistent mating force and low contact resistance across temperature extremes from -55 °C to +125 °C. The surface mount LC (low-clearance) configuration minimizes board height in stacked PCB assemblies used in rack-mounted computing systems.
Specifications
| Factory Lead Time | 3Weeks |
| YTEOL | 9.4 |
| Additional Feature | TIGER EYE CONTACT |
| Body Breadth | 0.145inch |
| Body Depth | 0.19inch |
| Body Length | 1.015inch |
| 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 |
| 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 |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| Plating Thickness | 30u inch |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 40 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | USA, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the SFM-120-L2-S-D-LC use and how many positions does it provide?
The SFM-120-L2-S-D-LC provides 40 contact positions in a dual-row layout with 30 micro-inch gold plating on the mating contacts and a tin finish with nickel barrier on the SMT termination side. The 30 micro-inch gold finish ensures low contact resistance and durability across multiple mating cycles in high-reliability applications.
How does the Tiger Eye contact technology in the SFM-120-L2-S-D-LC reduce contact resistance issues in vibrating environments?
The Tiger Eye contacts in the SFM-120-L2-S-D-LC use a dual-beam wiping mechanism that maintains a contact resistance below 20 milliohms even when subjected to vibration and PCB coplanarity variations up to ±0.1 mm. This wiping action displaces surface contamination during mating, preserving reliable signal integrity across the 40-pin interface from -55 °C to +125 °C.
Which board stacking and mezzanine applications best suit the SFM-120-L2-S-D-LC socket strip?
XMC, PMC, and AMC mezzanine card sockets in defense and aerospace systems best suit the SFM-120-L2-S-D-LC because its 1.27 mm pitch dual-row 40-position layout provides high pin density in a body measuring only 1.015 inches long by 0.19 inches deep. The low-clearance LC variant minimizes the stack height between boards in compact embedded computing chassis operating at -55 °C to +125 °C.
What is the factory lead time for the SFM-120-L2-S-D-LC and is it available for immediate procurement?
The standard factory lead time for the SFM-120-L2-S-D-LC is approximately 3 weeks when ordering from stock-depleted production runs. Distributor stock is available for immediate shipment, providing 40-position SMT Tiger Eye socket strips with 30 micro-inch gold contacts without the 3-week factory wait in standard procurement scenarios.
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