SQT-127-01-F-D SAMTEC Connector (Other) In Stock
SAMTEC SQT-127-01-F-D is a 54-position, dual-row, 2.00 mm pitch rugged PCB socket designed for cost-effective high-reliability interconnects. Features gold flash over nickel contact finish and FLEXYZ Tiger Buy contact technology for enhanced durability. Available from stock worldwide with same-day shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- SQT-127-01-F-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
- 54-position dual-row 2.00 mm pitch rugged PCB socket with FLEXYZ Tiger Buy contact technology for vibration resistance
- Gold flash over nickel contact finish on mating interface with tin-nickel barrier on termination side for reliable signal integrity
- RoHS-compliant (Pb-free) construction rated for high mating cycle applications in demanding industrial environments
Applications
The SQT-127-01-F-D is ideal for rugged board-to-board socket applications in industrial automation, defense electronics, and telecommunications equipment where mechanical robustness and 2.00 mm pitch density are required. Its FLEXYZ contact technology accommodates PCB coplanarity variations up to ±0.1 mm, reducing connector stress in thermally cycled assemblies. The 54-position dual-row layout supports high pin-count interconnect in compact form factors for test and measurement instrumentation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8 |
| Additional Feature | FLEXYZ, TIGER BUY CONTACT |
| Body Breadth | 0.158inch |
| Body Depth | 0.25inch |
| Body Length | 2.145inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD FLASH OVER NICKEL (50) |
| 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 | FLASH 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 | 54 |
| Withdrawl Force-Min | .834N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the SQT-127-01-F-D use and how does it affect insertion reliability?
The SQT-127-01-F-D uses gold flash over nickel on the mating contacts and tin with a nickel barrier on the termination side. Gold flash provides low contact resistance and corrosion protection, supporting reliable mating cycles in industrial and instrumentation environments operating over a -55 °C to +125 °C temperature range.
How many positions and what pitch does the SQT-127-01-F-D provide for PCB socket applications?
The SQT-127-01-F-D offers 54 positions arranged in a dual-row configuration at 2.00 mm pitch. The body measures approximately 2.145 inches in length, making it suitable for high pin-count board-to-board connections in compact PCBs requiring reliable electrical contacts at 2.00 mm grid spacing.
Which industrial applications benefit most from the SQT-127-01-F-D rugged PCB socket design?
Industrial automation controllers, defense avionics, and telecommunications backplanes benefit most from the SQT-127-01-F-D because its FLEXYZ Tiger Buy contact technology tolerates PCB warpage and vibration. The 54-position dual-row configuration at 2.00 mm pitch supports high-density wiring in environments with shock loads up to 50 G and operating temperatures from -55 °C to +125 °C.
Is the SQT-127-01-F-D RoHS compliant and what lead-free termination does it use?
Yes, the SQT-127-01-F-D is fully RoHS compliant with a Pb-free rating. The termination contacts use a tin (Sn) finish with a nickel (Ni) barrier to prevent tin whisker growth, ensuring reliability in lead-free solder reflow processes at temperatures up to 260 °C and meeting IPC-A-610 Class 3 soldering requirements.
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