SQT-105-02-L-D SAMTEC Connector (Other) In Stock
SAMTEC SQT-105-02-L-D is a 10-position, dual-row board socket connector with gold-plated FlexYZ Tiger Buy contacts and 0.050" pitch in a 0.407" body length. It features tin-over-nickel termination contacts and RoHS-compliant construction for high-reliability SMT board interconnects. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SQT-105-02-L-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
- 10-position dual-row socket with gold contact finish on mating surfaces for low contact resistance and corrosion-resistant board interconnects
- FlexYZ Tiger Buy contact technology provides flexible beam compliance for reliable mating with misaligned or warped pin headers
- Compact body measuring 0.407" x 0.158" x 0.250" fits in dense PCB layouts requiring dual-row 0.050" pitch socket connections
- Tin-over-nickel (Sn/Ni) termination finish on solder tails ensures reliable solder joint formation during SMT reflow assembly
- RoHS-compliant, lead-free construction meets global environmental regulations for electronics manufacturing
Applications
The SQT-105-02-L-D is designed for compact board-to-board and module-to-backplane socket connections in industrial instrumentation, embedded computing, and communications hardware where a 10-position dual-row 0.050" pitch socket with gold contacts is required. The FlexYZ contact compliance makes it particularly suitable for applications with slight PCB warpage or thermal expansion mismatch, ensuring consistent electrical contact in demanding environments such as industrial control modules and test fixtures.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8 |
| Additional Feature | FLEXYZ, TIGER BUY CONTACT |
| Body Breadth | 0.158inch |
| Body Depth | 0.25inch |
| Body Length | 0.407inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 10mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | 1.112N |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.079inch |
| Mating Contact Row Spacing | 0.079inch |
| 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 PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.0066mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 5.1A |
| Reference Standard | UL, CSA |
| Terminal Length | 0.6inch |
| Terminal Pitch | 2mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 10 |
| Withdrawl Force-Min | .834N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Mainland China, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the SQT-105-02-L-D use on its mating surfaces, and why does this matter for connector reliability?
The SQT-105-02-L-D uses gold (Au) contact finish on the mating surfaces of its 10-position dual-row 0.050" pitch socket. Gold provides low and stable contact resistance over many mating cycles and resists oxidation even in humid or corrosive environments, making it preferable over tin contacts for high-reliability applications in industrial instrumentation and aerospace electronics.
What is the FlexYZ Tiger Buy contact technology in the SQT-105-02-L-D and how does it improve mating reliability?
FlexYZ is SAMTEC's contact design that incorporates a compliant flexible beam structure allowing the contact to deflect in multiple axes to accommodate slight misalignment or PCB warpage during mating. In the SQT-105-02-L-D, this means the 10-position dual-row socket maintains reliable electrical contact even when the mating pin header is not perfectly perpendicular, reducing the risk of intermittent connections in vibration-prone or thermally stressed PCB assemblies.
What are the body dimensions of the SQT-105-02-L-D, and how do they constrain PCB layout design?
The SQT-105-02-L-D body measures 0.407" in length, 0.158" in breadth, and 0.250" in depth. These dimensions define the keepout zone required around the connector on the PCB, and the 0.407" length accommodates 10 dual-row contacts at 0.050" (1.27 mm) pitch, making it suitable for dense board layouts while still providing enough body clearance for reliable pick-and-place and soldering operations.
For which types of PCB assembly processes is the SQT-105-02-L-D best suited given its termination finish?
The SQT-105-02-L-D uses tin-over-nickel (Sn/Ni) termination on its solder tails, which is fully compatible with standard lead-free SMT reflow soldering processes at peak temperatures up to 260°C. The nickel barrier prevents tin diffusion into the base metal, ensuring long-term solder joint integrity. This makes the SQT-105-02-L-D appropriate for automated SMT production lines in industrial electronics and consumer hardware manufacturing using standard lead-free solder pastes.
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