QTE-040-03-F-D-A SAMTEC Connector (Other) In Stock
SAMTEC QTE-040-03-F-D-A is a 40-position dual-row male board stacking connector with 3.00 mm stack height, phosphor bronze contacts, and 50 µin gold flash over nickel mating finish for reliable board-to-board connections. Features E.L.P. (Eye of the Needle) press-fit termination with polarization for correct mating orientation. Available with 1-week lead time worldwide.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- QTE-040-03-F-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position dual-row male board stacking connector with precisely controlled 3.00 mm stack height for accurate board-to-board separation
- 50 µin gold flash over nickel mating contact finish providing corrosion resistance and reliable low-resistance electrical contact
- E.L.P. (Eye of the Needle) press-fit termination eliminating soldering for field-replaceable and rework-friendly board-to-board assemblies
- Polarized housing preventing mis-mating of the 40-position connector for error-proofed assembly in complex multi-board systems
Applications
The QTE-040-03-F-D-A is designed for board stacking applications in industrial computing, telecom line cards, and embedded system modules where a 40-position dual-row male connector with a precise 3.00 mm stack height must interface reliably without soldering. Its E.L.P. press-fit technology and polarization feature make it particularly suitable for field-upgradeable mezzanine cards and hot-swap daughter boards in rack-mount equipment where rework and replacement efficiency are important. The gold-flashed phosphor bronze contacts ensure stable electrical performance across thousands of mating cycles in data center switches, medical diagnostic equipment, and defense electronics requiring RoHS-compliant connector solutions.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| YTEOL | 8.68 |
| Additional Feature | E.L.P., POLARIZED |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD FLASH OVER NICKEL (50) |
| Contact Finish Termination | Gold (Au) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| 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 | Costa Rica, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the stack height and pin count of the QTE-040-03-F-D-A, and how does the E.L.P. termination work?
The QTE-040-03-F-D-A provides 40 positions in a dual-row male configuration with a 3.00 mm board-to-board stack height. The E.L.P. (Eye of the Needle) termination is a press-fit compliant pin that is pressed directly into plated through-holes in the PCB without soldering, allowing field replacement and rework without thermal stress on the board.
What contact material and finish does the QTE-040-03-F-D-A use and how does it affect reliability?
The QTE-040-03-F-D-A uses phosphor bronze contacts with 50 µin (1.27 µm) gold flash over nickel on the mating surface and gold with nickel barrier on the termination side, providing excellent spring-back properties for sustained contact normal force along with corrosion-resistant surfaces that maintain low contact resistance over thousands of mating cycles.
Why is the polarization feature of the QTE-040-03-F-D-A important in complex multi-board assemblies?
The polarization feature of the QTE-040-03-F-D-A physically prevents the 40-position dual-row connector from being inserted in the wrong orientation, eliminating the risk of reverse-mating damage in dense assemblies where multiple similar connectors are placed side by side on backplanes or mezzanine boards with limited visual access during assembly.
When is a press-fit connector like the QTE-040-03-F-D-A preferable to a soldered board stacking connector?
A press-fit connector such as the QTE-040-03-F-D-A is preferable when the PCB assembly must withstand rework or field replacement without reflowing solder, such as in hot-swap mezzanine cards, field-upgradeable telecom blades, and modular industrial controllers where soldering would risk thermal damage to adjacent components or require complex rework tooling for a 40-position connector at 3.00 mm stack height.
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