SQT-105-01-G-D SAMTEC Connector (Other) In Stock
Samtec SQT-105-01-G-D is a 10-position, 2.00 mm pitch dual-row rugged PCB socket with gold-plated female contacts designed for cost-effective yet reliable board-to-board interconnection. Features a compact 10.3 mm body length with gold-over-nickel contact finish for low-resistance mating. Available from stock worldwide at competitive pricing.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SQT-105-01-G-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 PCB socket on 2.00 mm pitch for compact cost-effective board-to-board mating
- Gold-over-nickel (Au/Ni) contact finish ensures low contact resistance below 20 milliohms and corrosion resistance
- Rugged socket body design withstands vibration and repeated mating cycles in industrial environments
- Female contact gender accepts standard square-post or round-pin 2.00 mm pitch male headers
Applications
The SQT-105-01-G-D is used in cost-sensitive embedded computing modules, IoT sensor boards, and development platforms requiring a rugged 10-position 2.00 mm pitch socket that balances low profile with reliable contact retention. Its gold-plated female contacts suit applications where boards are mated and unmated repeatedly during testing or field deployment, such as removable sensor daughter cards in industrial monitoring equipment. The 2.00 mm pitch provides a middle ground between the compact 1.27 mm fine-pitch and the standard 2.54 mm pitch, fitting designs where moderate density and ease of hand soldering are both required.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.157inch |
| Body Depth | 0.079inch |
| Body Length | 0.406inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD |
| Contact Finish Termination | Gold (Au) - 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 |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | 1.112N |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.079inch |
| Mating Contact Row Spacing | 0.079inch |
| 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 | 20u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 5.1A |
| Reference Standard | UL, CSA |
| Terminal Length | 0.09inch |
| 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 | USA, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and position count does SQT-105-01-G-D use, and why is 2.00 mm pitch a practical choice for embedded modules?
SQT-105-01-G-D uses a 2.00 mm pitch with 10 positions in a dual-row layout, providing 5 contacts per row. The 2.00 mm pitch is a practical middle-ground choice: it is denser than 2.54 mm (saving roughly 20% board length) yet easier to hand-solder and inspect than 1.27 mm fine-pitch connectors. This makes it common in small IoT modules, Raspberry Pi HATs, and industrial sensor daughter cards where moderate pin density and accessibility both matter.
How does the gold-over-nickel contact finish of SQT-105-01-G-D benefit high-cycle mating applications?
The gold-over-nickel (Au/Ni) finish on SQT-105-01-G-D contacts maintains contact resistance below 20 milliohms through hundreds of mating cycles by preventing oxidation and wear that would affect bare copper or tin-plated alternatives. The nickel barrier layer prevents gold diffusion into the copper base, extending plating life. This finish is especially beneficial in test fixtures, removable calibration modules, or field-replaceable sensor cards that are mated and unmated 50 or more times during their service life.
What type of male header mates with SQT-105-01-G-D, and where can matching Samtec headers be found?
SQT-105-01-G-D mates with Samtec's TSW or equivalent 2.00 mm pitch dual-row square-post male headers. The female socket is designed for a 0.64 mm square-pin or equivalent round pin on a 2.00 mm grid. Samtec offers mating headers in the SSQ, TSW, and similar series at 2.00 mm pitch; the mating header should specify 10 positions, dual-row, to match the SQT-105-01-G-D socket exactly in pin count and row spacing.
Is SQT-105-01-G-D RoHS compliant, and can it be used in lead-free soldering processes?
Yes, SQT-105-01-G-D is RoHS compliant as indicated by the Pbfree Code: Yes in its specification data. The connector withstands standard lead-free reflow temperatures up to 260°C peak for SMT assembly. Its gold-over-nickel termination finish is compatible with lead-free solder pastes such as SAC305 (Sn96.5/Ag3.0/Cu0.5), ensuring reliable solder joint formation on 2.00 mm pitch pads without flux compatibility issues.
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