SFM-120-L2-STL-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-120-L2-STL-D-LC is a 40-position dual-row high-reliability socket strip with 0.050 inch pitch, featuring Tiger Eye contacts with 30 µin gold finish, split board lock, and shrouded housing for secure SMT board-to-board interconnects.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- SFM-120-L2-STL-D-LC Datasheet PDF
- Category
- Connector
- Price
- From $4.5227(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-120-L2-STL-D-LC?
- 40 positions in dual-row 0.050" pitch for ultra-high-density board-to-board signal routing
- Tiger Eye contact design with 30 µin gold mating surface for superior durability over 500+ mating cycles
- Split board lock (LC) mechanically anchors connector to PCB, resisting pull-out forces exceeding 50 N
- Shrouded housing (STL) prevents mismating and protects contacts during assembly and field service
- Compact body length of 1.155 inch accommodates 40 positions in a minimal PCB footprint
What is SFM-120-L2-STL-D-LC used for?
The SFM-120-L2-STL-D-LC is designed for secure, high-cycle-count board-to-board connections in mil-aero, medical devices, and industrial automation where the split board lock prevents accidental connector separation under mechanical stress. The 0.050 inch pitch and Tiger Eye contacts provide reliable 40-channel signal integrity for LVDS and LVCMOS buses at frequencies up to 1 GHz. The shrouded housing ensures correct polarization, making this connector appropriate for field-replaceable modules and equipment requiring repeated maintenance access.
What are the specifications of SFM-120-L2-STL-D-LC?
| Factory Lead Time | 3 Weeks, 3 Days |
| YTEOL | 9.4 |
| Additional Feature | TIGER EYE CONTACT |
| Board Mounting Option | SPLIT BOARD LOCK |
| Body Breadth | 0.145inch |
| Body Depth | 0.185inch |
| Body Length | 1.155inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) |
| Contact Finish Termination | Tin/Lead (Sn/Pb) - 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 | e0 |
| 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 | 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 |
Where can I find the SFM-120-L2-STL-D-LC datasheet?
SFM-120-L2-STL-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-120-L2-STL-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the split board lock (LC) on SFM-120-L2-STL-D-LC improve mechanical retention compared to standard SMT pads?
The split board lock (LC) feature solders additional locking tabs into the PCB, increasing the connector's pull-out resistance to over 50 N compared to less than 20 N for surface-pad-only mounting. This is critical in applications with vibration levels exceeding 5 G, such as avionics LRUs, locomotive control units, and handheld industrial terminals.
Why would an engineer specify 30 µin gold plating on SFM-120-L2-STL-D-LC instead of 10 µin gold alternatives?
A 30 µin gold contact finish on all 40 mating positions extends reliable contact life beyond 500 mating cycles, maintaining contact resistance below 20 mΩ even in humid or mildly corrosive environments. The thicker gold layer is specified when connectors are exposed to salt fog (per MIL-STD-202) or when design life requires more than 200 cycles, unlike the 10 µin finish which may wear through in high-cycle applications.
What is the lead time for SFM-120-L2-STL-D-LC and how should buyers plan inventory for a medium-volume production program?
The factory lead time for SFM-120-L2-STL-D-LC is approximately 3 weeks and 3 days from authorized SAMTEC distributors. For production programs building 500 to 2,000 boards per month, buyers should maintain a safety stock of at least 3,000 pieces—covering roughly 6 weeks of demand—to buffer against lead time variability during peak demand periods.
In a 40-channel high-speed interface, what signal frequency limit should designers observe with SFM-120-L2-STL-D-LC?
SAMTEC SFM series 0.050 inch pitch socket strips are designed to support signal frequencies up to 1 GHz across the 40 contacts when used with matched-impedance headers and controlled-impedance PCB traces. For differential pairs such as LVDS at 400 Mbps per lane, the connector introduces less than 0.5 dB insertion loss up to 500 MHz, making it suitable for video, networking, and sensor data acquisition interfaces.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.9700 | $5.97 |
| 500+ | $5.7470 | $2873.50 |
| 1000+ | $5.2150 | $5215.00 |
| 2000+ | $4.6660 | $9332.00 |
| 50000+ | $4.5506 | $227531.00 |
| 100000+ | $4.5227 | $452270.00 |
In Stock · 24h Response · Worldwide Shipping
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