QTH-040-02-L-D-DP-A SAMTEC Connector (Other) In Stock
SAMTEC QTH-040-02-L-D-DP-A is an 80-position dual-row board stacking connector with rectangular male contacts and tin-over-nickel finish. Features a 1.575" body length and 0.035" hole diameter for through-hole mounting with a 0.286" stack height. Suitable for compact board-to-board stacking assemblies in industrial and computing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- QTH-040-02-L-D-DP-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 through-hole board stacking connector at rectangular contact pattern for high-density PCB-to-PCB signal routing
- Tin-over-nickel (Sn/Ni) contact finish providing reliable electrical conductivity and corrosion resistance for long-term stacking interconnect
- Compact 1.575" body length with 0.286" stack height enabling tight board separation in dense multi-PCB assemblies
Applications
The QTH-040-02-L-D-DP-A is used in board stacking designs for industrial controllers, embedded computing modules, and communication equipment where multiple PCBs must be mechanically joined with 80-signal interconnect. Its through-hole mounting ensures robust mechanical retention even under vibration and thermal stress. Engineers use this connector in FPGA carrier boards, processor mezzanine stacks, and power management assemblies where reliable multi-board signal routing across short stack heights is required.
Specifications
| Factory Lead Time | 4 Weeks, 1 Day |
| YTEOL | 8.68 |
| Board Mounting Option | HOLE 0.035 |
| Body Breadth | 0.235inch |
| Body Depth | 0.286inch |
| Body Length | 1.575inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| Durability | 100Cycles |
| Filter Feature | NO |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| Mating Contact Pitch | 0.02inch |
| Mating Contact Row Spacing | 0.155inch |
| 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 | 6.18mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2A |
| Reference Standard | UL |
| Terminal Pitch | 0.5mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 80 |
| UL Flammability Code | 94V-0 |
| Withdrawl Force-Min | 1.668N |
| 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, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the board stack height supported by the QTH-040-02-L-D-DP-A, and how is it measured?
The QTH-040-02-L-D-DP-A has a body depth (stack height) of 0.286 inch (approximately 7.26 mm), which defines the board-to-board separation when the connector is fully mated. This compact stack height is suitable for multi-PCB assemblies where minimizing the total system thickness is important, such as in FPGA mezzanine modules, embedded computing carriers, and industrial control stacks with strict mechanical envelope constraints.
Why choose through-hole mounting for QTH-040-02-L-D-DP-A over surface-mount board stacking connectors?
Through-hole mounting with 0.035" hole diameter provides significantly higher pull-out and mating force resistance than surface-mount alternatives, making QTH-040-02-L-D-DP-A more reliable in environments with mechanical shock, vibration, or frequent mating cycles. The solder-through-hole retention also tolerates higher insertion forces without solder joint fatigue, which is why this 80-position dual-row stacking connector is preferred for industrial machinery, defense equipment, and ruggedized computing platforms.
Can QTH-040-02-L-D-DP-A be used for both signal and low-power routing in the same 80-position connector?
Yes, the QTH-040-02-L-D-DP-A's 80 rectangular male contacts with tin-over-nickel finish support both signal and low-power distribution within the same connector body. In typical board stacking designs, engineers assign a portion of the 80 pins to digital I/O signals at 3.3 V or 5 V logic levels and reserve other pins for power rails at up to 1 A per contact, enabling a single compact 1.575" connector to handle both data and power interconnect between stacked boards.
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