QTE-020-04-L-D-A SAMTEC Connector (Other) In Stock
QTE-020-04-L-D-A is a 20-position dual-row RoHS-compliant board-stacking connector from SAMTEC with gold over nickel contact plating, polarised locating posts, and a 0.788 inch body length for reliable PCB-to-PCB mating. Its 10 µin gold contact finish ensures low contact resistance in high-cycle mezzanine applications. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- QTE-020-04-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
- 20-position dual-row board-stacking connector with 40 contacts and 10 µin gold over 50 µin nickel finish for reliable low-resistance mating in high-cycle applications
- Polarised design with locating posts prevents mis-insertion and ensures consistent board-to-board alignment during automated or hand assembly
- Compact 0.788 inch body with 0.235 inch breadth suits high-density mezzanine stack-up designs in FPGA boards and embedded computing modules
- RoHS-compliant and lead-free construction meets EU and global environmental regulations for consumer and industrial market access
Applications
The QTE-020-04-L-D-A serves as the receptacle half in SAMTEC QTH/QTE mezzanine board-stacking pairs for FPGA evaluation kits, embedded processor daughter cards, and modular industrial controllers that need 40 contacts between two stacked PCBs. Its gold-plated contacts sustain reliable connectivity over repeated mate-unmate cycles, making it suitable for field-swappable module designs in test-and-measurement racks and laboratory instrumentation. The polarised locating posts also make it appropriate for robotics control boards and medical device sub-assemblies where incorrect connector orientation must be physically prevented.
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 | 0.601inch |
| Body Length | 0.788inch |
| 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 Resistance | 18mΩ |
| Contact Style | CENTRONIC |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 675VAC V |
| Durability | 100Cycles |
| 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 |
| PCB Contact Row Spacing | 6.096mm |
| 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 | 40 |
| 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 contacts does the QTE-020-04-L-D-A provide, and what contact plating ensures reliable connectivity?
The QTE-020-04-L-D-A is a 20-position dual-row connector providing 40 contacts total, plated with 10 µin gold over 50 µin nickel. Gold plating at this thickness minimises contact resistance to below 20 mΩ and resists oxidation over hundreds of mate-unmate cycles, which is important in field-replaceable module designs and laboratory instruments that are frequently plugged and unplugged.
What do the polarised locating posts on the QTE-020-04-L-D-A prevent during board assembly or field servicing?
The polarised locating posts on the QTE-020-04-L-D-A physically prevent the connector from mating in the wrong orientation, eliminating the risk of a 180-degree mis-insertion that would short power and signal pins. In a 40-contact dual-row connector carrying mixed 3.3 V, 5 V, and ground lines, preventing mis-insertion is critical to protecting downstream ICs from reverse-polarity damage during field maintenance.
What is the typical factory lead time for the QTE-020-04-L-D-A, and how does this compare to other mezzanine connectors?
The QTE-020-04-L-D-A has a 1-week factory lead time, which is among the shortest in the mezzanine connector segment where competitors often quote 4 to 8 weeks. This short lead time reduces the procurement buffer stock needed for production ramps and allows engineering teams to quickly iterate on mezzanine card prototypes without waiting months for connector samples.
In which SAMTEC board-stacking system does the QTE-020-04-L-D-A serve as the receptacle, and what body dimensions define its PCB footprint?
The QTE-020-04-L-D-A is the receptacle (socket) component in the SAMTEC QTH-QTE board-stacking connector family, mating with corresponding QTH plug headers. Its body is 0.788 inches long and 0.235 inches wide with a 0.601 inch depth, which sets the keepout zone required on the host PCB and determines the minimum distance between the two stacked boards in the mezzanine assembly.
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