QTE-040-04-L-D-A SAMTEC Connector (Other) In Stock
The QTE-040-04-L-D-A is a SAMTEC board-stacking connector with 40 positions, dual-row layout, right-angle SMT termination, gold-over-nickel contact finish, and positioning pin alignment, measuring 1.575" × 0.601" in body size. It provides reliable polarized board-to-board interconnection for high-density embedded systems. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- QTE-040-04-L-D-A 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
- 40-position dual-row board stacking connector with right-angle (L) surface-mount termination for low-profile card-to-card assemblies
- Gold (10 µin) over nickel (50 µin) contact finish ensuring low contact resistance and corrosion resistance over thousands of mating cycles
- E.L.P. polarized design with positioning pin preventing mis-insertion in automated assembly and field maintenance
Applications
The QTE-040-04-L-D-A is used in board-to-board stacking assemblies for embedded computing modules, industrial SBC carrier boards, and test fixture backplanes where 40 signals must route horizontally between PCBs in a compact right-angle orientation. Its polarized E.L.P. design with positioning pin prevents mis-mating during field replacement, reducing service errors in deployed industrial and medical hardware. The gold-over-nickel contact finish maintains reliable electrical continuity across the full rated number of mating cycles in environments with humidity and temperature variation.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| YTEOL | 8.68 |
| Additional Feature | E.L.P., POLARIZED |
| Board Mounting Option | POSITIONING PIN |
| Body Breadth | 0.235inch |
| Body Depth | 0.601inch |
| Body Length | 1.575inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (10) OVER NICKEL (50) |
| Contact Finish Termination | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | NOT SPECIFIED |
| Contact Pattern | RECTANGULAR |
| Contact Style | CENTRONIC |
| DIN Conformance | NO |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.031inch |
| 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 | 6.096mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2A |
| Reference Standard | UL |
| Terminal Pitch | 0.8mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 80 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does the QTE-040-04-L-D-A provide, and how are they physically arranged?
The QTE-040-04-L-D-A provides 40 positions arranged in 2 rows on a standard SAMTEC QTE pitch, with a body length of 1.575 inches and body depth of 0.601 inches, accommodating 20 contacts per row in a right-angle dual-row SMT board stacking footprint designed for horizontal card-to-card interconnects.
What contact plating does the QTE-040-04-L-D-A use, and why is gold plating important for long-term reliability?
The QTE-040-04-L-D-A uses 10 µin of gold over 50 µin of nickel on mating contact surfaces. Gold prevents oxide formation that increases contact resistance over time, ensuring stable milliohm-level connection resistance across thousands of mating cycles and in humid or corrosive industrial environments where base-metal contacts would degrade within months.
In which embedded computing or industrial applications is the polarized QTE-040-04-L-D-A board stacking connector most appropriate?
The QTE-040-04-L-D-A is most appropriate for COM Express carrier-to-module interfaces, industrial SBC I/O expansion boards, and medical imaging daughtercards where 40 mixed signal and power lines must interconnect between stacked PCBs separated by 4 mm stack height, and where the polarized positioning pin ensures correct orientation during both factory assembly and field service replacement.
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