SFM-120-L2-L-D SAMTEC Connector (Other) In Stock
SAMTEC SFM-120-L2-L-D is a 40-position dual-row high-reliability socket strip with 0.050 inch pitch, featuring Tiger Eye gold-over-nickel contacts and elevated mounting for precision SMT interconnects in demanding electronic assemblies.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- SFM-120-L2-L-D Datasheet PDF
- Category
- Connector
- Price
- From $2.8905(MOQ 19)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40 positions in dual-row 0.050" pitch enabling high-density signal interconnects on compact PCBs
- Tiger Eye contact design provides reliable wiping action and low insertion force over 500+ mating cycles
- Gold (10 µin) over Nickel (50 µin) contact finish ensures low contact resistance and corrosion resistance
- E.L.P. (Elevated Liner Plating) feature increases mechanical durability for repeated mating applications
- Lead-free (Pb-free) tin termination finish meets RoHS compliance requirements for modern assemblies
Applications
The SFM-120-L2-L-D is designed for high-reliability interconnect applications in test and measurement equipment, medical instrumentation, and FPGA daughter card attachments where consistent electrical performance across hundreds of mating cycles is required. The 0.050 inch pitch and dual-row socket configuration maximize contact density for LVDS, LVCMOS, and SPI signal buses in space-constrained designs. Its Tiger Eye contacts and gold plating provide robust connections in environments with vibration, thermal cycling, and humidity exposure.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.4 |
| Additional Feature | E.L.P., TIGER EYE CONTACT |
| Body Breadth | 0.095inch |
| Body Depth | 0.185inch |
| Body Length | 1.015inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (10) 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 |
| 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 | 10u 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 | 40 |
| 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
Compatible alternatives and drop-in replacements for SFM-120-L2-L-D:
Samtec Inc Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Samtec Inc Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Locking, Black Insulator, Socket
Samtec Inc Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Samtec Inc Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Samtec Inc Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator, Socket
Frequently Asked Questions
How many mating cycles can the Tiger Eye contacts in SFM-120-L2-L-D reliably sustain?
The Tiger Eye contact design in SAMTEC SFM series socket strips is rated for a minimum of 500 mating cycles while maintaining contact resistance below 20 mΩ. This makes the SFM-120-L2-L-D suitable for test fixtures, daughter card modules, and prototype boards where repeated insertion and removal is a regular operational requirement.
What signal integrity benefits does the gold-over-nickel contact finish provide on SFM-120-L2-L-D?
The gold (10 µin minimum over 50 µin nickel) contact finish on all 40 positions provides a surface resistance below 10 mΩ and excellent resistance to oxidation over the connector's service life. At signal frequencies up to 1 GHz, gold contacts maintain consistent impedance without the intermittent contacts that occur with tin-only finishes after oxidation.
How does the 0.050 inch pitch of SFM-120-L2-L-D help engineers reduce PCB area compared to 0.100 inch pitch alternatives?
The 0.050 inch (1.27 mm) pitch allows 40 positions to fit within a body length of approximately 1.015 inches, roughly half the footprint of an equivalent 0.100 inch pitch connector with the same pin count. This space saving is critical in FPGA mezzanine and memory module designs where PCB area is at a premium and routing density must exceed 20 signals per centimeter.
Is SFM-120-L2-L-D compatible with SAMTEC TSW or TFM header series for mated connector pairs?
SFM series 0.050 inch pitch socket strips mate directly with SAMTEC TFM (through-hole) and SFM-compatible header series that share the same 1.27 mm pitch contact pattern. Engineers should verify stack height selection—options range from 2 mm to 10 mm—to match the required board-to-board spacing in the target assembly before ordering complementary header parts.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $5.4832 | $104.18 |
| 50+ | $4.7400 | $237.00 |
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| 2000+ | $2.8905 | $5780.96 |
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