SQT-105-03-L-D SAMTEC Connector (Other) In Stock
SAMTEC SQT-105-03-L-D is a 0.100" pitch dual-row, 10-position square-post socket strip with gold mating contacts and FLEXYZ compliance, offering reliable board-to-board and wire-to-board signal interconnection in a RoHS-compliant package.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SQT-105-03-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
- 0.100" (2.54 mm) pitch dual-row 10-position square-post socket for high-density board-to-board signal connections
- Gold mating contact finish delivers low contact resistance and long insertion life across repeated mating cycles
- FLEXYZ contact technology provides lateral compliance to absorb PCB-to-PCB misalignment during mating
- Tiger Buy contact program ensures stock availability for fast 1-week lead time procurement without minimum order constraints
- RoHS-compliant lead-free construction satisfies global environmental regulations for end-product compliance
Applications
The SQT-105-03-L-D is used in board-to-board stacking and daughter-card interconnect designs where 0.100" pitch gold-contact sockets provide reliable 10-position dual-row signal paths. The FLEXYZ compliance feature makes it well suited for PCB assemblies with slight board warpage or misalignment, common in high-density embedded computing and test-and-measurement rack systems. It is also widely used in prototyping and development boards where Tiger Buy availability ensures fast procurement for small-batch production runs.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| 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 | 0.208inch |
| 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, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact pitch and position count does the SQT-105-03-L-D provide for board-to-board stacking designs?
The SQT-105-03-L-D provides 10 positions on a 0.100" (2.54 mm) pitch in a dual-row square-post socket configuration, delivering 20 total contacts. The gold mating finish ensures stable, low-resistance connections suited for signal integrity-critical paths in embedded systems and test rigs operating at voltages from 3.3 V to 12 V.
How does the FLEXYZ compliance feature of SQT-105-03-L-D help in assemblies with PCB bow or misalignment?
FLEXYZ contacts in the SQT-105-03-L-D provide lateral mechanical compliance that absorbs up to several tenths of a millimeter of PCB-to-PCB misalignment during mating, reducing insertion force and preventing connector damage. This is particularly valuable in multi-board stacked assemblies where thermal cycling from -40 °C to +85 °C causes differential PCB expansion that shifts board positions relative to each other.
What procurement advantage does the Tiger Buy contact program offer for the SQT-105-03-L-D on short-lead-time projects?
The Tiger Buy program guarantees a 1-week factory lead time for the SQT-105-03-L-D, significantly shorter than the 8 to 14 week standard lead times common for specialty connectors. This makes it practical for prototype builds, small-batch production of 10 to 500 units, and urgent field-replaceable-unit sparing situations where waiting for standard supply chain cycles is not feasible.
Why would a designer choose the SQT-105-03-L-D dual-row socket over a single-row 0.100" connector for the same signal count?
A dual-row layout halves the connector body length needed for 20 contacts compared to a single-row alternative at the same 0.100" pitch, reducing the PCB edge-card footprint by approximately 50 %. This matters in small form-factor embedded boards where the 0.407-inch body length of the SQT-105-03-L-D allows 20 signals to be routed through a connector smaller than a 1-inch single-row equivalent.
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