SQT-128-01-S-D SAMTEC Connector (Other) In Stock
SAMTEC SQT-128-01-S-D is a 56-position, 2.00mm pitch, cost-effective rugged PCB socket with gold-plated mating contacts and tin-nickel termination. Designed for reliable board-to-board interconnection in industrial and commercial applications. From $5.00 in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- SQT-128-01-S-D Datasheet PDF
- Category
- Connector
- Price
- From $4.1357(MOQ 10)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SQT-128-01-S-D?
- 56-position dual-row PCB socket with 2.00mm pitch for high-density board-to-board connections
- Gold-plated mating contacts with tin-nickel barrier termination for reliable low-resistance electrical performance
- Rugged socket design rated for industrial environments with body dimensions of 2.216 x 0.157 x 0.079 inch
What is SQT-128-01-S-D used for?
The SQT-128-01-S-D PCB socket is ideal for industrial control systems and embedded computing boards requiring reliable 56-position interconnection at 2.00mm pitch. It is commonly used in test and measurement equipment, data acquisition modules, and ruggedized electronic assemblies. The gold-mating-contact design ensures consistent electrical performance across repeated mating cycles in demanding environments.
What are the specifications of SQT-128-01-S-D?
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.157inch |
| Body Depth | 0.079inch |
| Body Length | 2.216inch |
| 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 |
| 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 |
| 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 | 30u 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 | 56 |
| 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 | Malaysia, Vietnam |
Where can I find the SQT-128-01-S-D datasheet?
SQT-128-01-S-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SQT-128-01-S-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pitch spacing of the SQT-128-01-S-D socket, and how does it affect PCB layout density?
The SQT-128-01-S-D uses a 2.00mm pitch spacing across 56 positions, which provides a balance between routing density and mechanical reliability. The body measures 2.216 inches in length, making it suitable for medium-density PCB layouts in industrial electronics where reliable interconnection is critical.
Which contact finish does the SQT-128-01-S-D use for mating, and why is this important for signal integrity?
The SQT-128-01-S-D features gold-plated mating contacts, which provide excellent corrosion resistance and low contact resistance. The termination side uses tin (Sn) with a nickel (Ni) barrier, ensuring reliable soldering and preventing tin whisker growth. This dual-finish design supports stable signal integrity over the full 56-pin interface.
In what industrial applications is the SQT-128-01-S-D most commonly deployed?
The SQT-128-01-S-D is widely used in industrial control boards, embedded computing modules, data acquisition systems, and test equipment. Its 56-position count at 2.00mm pitch and rugged socket construction make it suitable for environments where reliable board-to-board connectivity with repeated mating cycles of at least 8 years expected EOL service life is required.
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Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $10.9000 | $109.00 |
| 50+ | $9.9800 | $499.00 |
| 100+ | $9.1900 | $919.00 |
| 250+ | $7.4663 | $1866.57 |
| 500+ | $5.6790 | $2839.52 |
| 1000+ | $4.1357 | $4135.71 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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