QTE-040-02-L-D-A SAMTEC Connector (Other) In Stock
The QTE-040-02-L-D-A is a SAMTEC 80-pin dual-row board-stacking connector with 2mm pitch, gold-over-nickel contact finish, and polarized locating posts for reliable PCB-to-PCB mating. It features a 0.2-inch stack height and is RoHS compliant for high-density signal routing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- QTE-040-02-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
- 80-position dual-row layout at 2mm pitch enables high-density board-to-board signal routing in compact assemblies
- Gold (10 µin) over nickel (50 µin) contact finish ensures low contact resistance and extended mating cycle life
- Polarized locating posts prevent mis-mating during assembly, reducing field failures in high-reliability designs
- RoHS compliant construction with 1-week factory lead time supports rapid production schedules
Applications
The QTE-040-02-L-D-A is suited for mezzanine board stacking in embedded computing, industrial automation, and telecommunications equipment where 80 signals must bridge two PCBs reliably. Its 2mm pitch and polarized posts make it a preferred choice for daughtercard interfaces in rugged environments where vibration resistance and repeatable mating are critical. Engineers designing compact multi-board systems benefit from its short 0.2-inch stack height, which minimizes overall enclosure depth.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| YTEOL | 8.68 |
| Additional Feature | E.L.P., POLARIZED |
| Board Mounting Option | LOCATING POSTS |
| Body Breadth | 0.235inch |
| Body Depth | 0.286inch |
| Body Length | 1.575inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (10) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | NOT SPECIFIED |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | CENTRONIC |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 675VAC V |
| Durability | 500Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| 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 |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2A |
| Reference Standard | UL, CSA |
| 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
How many contacts does the QTE-040-02-L-D-A carry, and what pitch spacing do they use?
The QTE-040-02-L-D-A provides 80 contacts arranged in a dual-row configuration at 2mm pitch. This density allows routing of high-speed differential pairs, power rails, and control signals across two boards within a body length of 1.575 inches, making it well suited for compact mezzanine card designs.
What contact finish does QTE-040-02-L-D-A use, and how does it affect signal integrity at high cycle counts?
The connector uses 10 µin gold over 50 µin nickel on mating surfaces. Gold provides low and stable contact resistance across hundreds of mating cycles, preserving signal integrity for high-speed differential signals up to several gigahertz without introducing impedance discontinuities caused by oxidation that bare-tin contacts would develop over time.
For a multilayer PCB stack-up, what board separation does QTE-040-02-L-D-A set between the two boards?
QTE-040-02-L-D-A establishes a 0.2-inch (approximately 5.08 mm) board-to-board separation when fully mated. This fixed stack height must be accounted for in the mechanical enclosure design; engineers should add approximately 0.5 mm clearance per board thickness on each side to avoid warping under compressive loads at 85°C maximum operating temperature.
Is QTE-040-02-L-D-A a drop-in alternative to standard 2mm pitch dual-row connectors from other vendors?
QTE-040-02-L-D-A follows standard 2mm dual-row pin-field geometry (80 positions, 2 rows of 40) compatible with many industry-standard mezzanine footprints. The polarized locating posts and 1.575-inch body length may differ slightly from competing 80-pin connectors, so verify land pattern dimensions against Samtec's recommended PCB footprint before substituting to avoid 0.1 mm misalignment causing solder bridging.
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