SFM-120-L2-S-D SAMTEC Connector (Other) In Stock
SAMTEC SFM-120-L2-S-D is a 40-position dual-row surface mount socket strip with 0.050" pitch, featuring Tiger Eye beryllium copper contacts with 30µ" gold over nickel plating for exceptional reliability. Rated for high-cycle mating with ELP (Extended Life Pin) contacts across -55°C to +125°C. Available from FindMyChip with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- SFM-120-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
- 40-position dual-row socket with 0.050" (1.27 mm) pitch enabling ultra-dense board-to-board connections
- Tiger Eye beryllium copper contacts with 30 µin gold over 50 µin nickel plating for superior contact reliability and durability
- Extended Life Pin (ELP) technology provides enhanced mating durability rated for thousands of insertion cycles
Applications
SFM-120-L2-S-D is designed for high-density board stacking and mezzanine card interconnects in servers, telecom equipment, and high-speed data acquisition systems where 40 signals must traverse boards at 0.050" pitch. The Tiger Eye contact design ensures reliable mating with SFM-series male strips in environments subject to vibration or repeated board swaps. This socket strip is also used in test fixtures and development kits requiring frequent module insertion and removal.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.4 |
| Additional Feature | E.L.P., TIGER EYE CONTACT |
| 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 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 Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| Plating Thickness | 30u inch |
| Rated Current (Signal) | 3.2A |
| 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 plating does SFM-120-L2-S-D use and how does it affect reliability?
SFM-120-L2-S-D uses Tiger Eye beryllium copper contacts plated with 30 µin gold over 50 µin nickel. The gold finish minimizes contact resistance and prevents oxidation, while the nickel barrier prevents gold diffusion into the base copper, ensuring stable low-resistance connections across thousands of mating cycles in 40-position dual-row applications.
How compact is the SFM-120-L2-S-D footprint for a 40-position dual-row socket at 0.050" pitch?
At 0.050" (1.27 mm) pitch, SFM-120-L2-S-D spans approximately 1.0" (25.4 mm) along its 20-position-per-row length, making it one of the more compact 40-position SMT socket options. This allows dense board stacking in a footprint roughly half the size of equivalent 0.100" pitch connectors, ideal for mezzanine cards and compact embedded modules.
Which board stacking or mezzanine applications benefit most from SFM-120-L2-S-D?
SFM-120-L2-S-D excels in server blade interconnects, FPGA daughter-card interfaces, and telecom line cards where 40 signals at 0.050" pitch must pass between boards reliably. Its surface mount design supports high-speed signal integrity up to several GHz, and the ELP Tiger Eye contacts handle applications requiring 500 or more mating cycles such as test and measurement fixtures.
What is the operating temperature range of SFM-120-L2-S-D and can it be used in industrial environments?
SFM-120-L2-S-D is rated for operation from -55°C to +125°C, covering the full industrial temperature range. The beryllium copper contact material maintains its spring force across this thermal range, ensuring reliable 40-pin signal continuity in industrial control panels, outdoor telecom cabinets, and automotive test systems exposed to temperature cycling.
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