QTE-020-05-F-D-A SAMTEC Connector (Other) In Stock
SAMTEC QTE-020-05-F-D-A is a 40-position dual-row board stacking connector with polarized male contacts and gold-flash-over-nickel contact finish, designed for reliable high-density mezzanine and daughter card interconnections. RoHS compliant with tin-over-nickel termination. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- QTE-020-05-F-D-A Datasheet PDF
- Category
- Connector
- Price
- From $3.7217(MOQ 50)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position dual-row male board stacking connector with polarization feature to prevent reverse mating in dense PCB assemblies
- Gold flash over nickel (50 µin) mating contact finish delivers reliable low-resistance connections across multiple mating cycles
- RoHS-compliant tin-over-nickel termination supports lead-free reflow soldering in environmentally regulated product designs
Applications
The QTE-020-05-F-D-A is used in board stacking and mezzanine interconnect applications in embedded computing modules, FPGA evaluation platforms, and industrial control daughter cards that require 40 polarized signal connections between PCB pairs. The gold-flash mating finish ensures stable contact resistance even in vibration-prone environments such as robotics or avionics test equipment. Its polarized design prevents incorrect board orientation during rapid system assembly or field maintenance.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 4Weeks |
| 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 | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | NOT SPECIFIED |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| JESD-609 Code | e3 |
| 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 | 40 |
| 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 contact finish does the QTE-020-05-F-D-A use and why does that matter for signal integrity?
The QTE-020-05-F-D-A uses gold flash over nickel (50 µin) on the mating contacts and tin-over-nickel on the termination. Gold flash provides a hard, oxide-free surface that maintains contact resistance below a few milliohms across repeated mating cycles, which is important for signal integrity on high-frequency board stacking interfaces operating above 100 MHz.
In which board stacking height configurations can the QTE-020-05-F-D-A be used?
The QTE-020-05-F-D-A is part of SAMTEC's QTE series, which mates with corresponding QSE or QTH headers. Stacking heights are determined by the mating socket's stack height designation, typically ranging from 4 mm to 20 mm, allowing designers to select the inter-board spacing that fits their enclosure height and routing requirements without changing the 40-position connector footprint.
How does polarization on QTE-020-05-F-D-A protect a 40-pin interface during field servicing?
The polarization feature physically keyed into the 40-position body prevents 180-degree mis-insertion, which on a 40-pin bus could reverse power and ground, destroying connected ICs in milliseconds. Field technicians can confidently mate daughter cards without visual alignment checks, reducing repair time and the risk of expensive board damage in deployed systems.
Is QTE-020-05-F-D-A suitable for a USB 3.0 or PCIe x4 daughter card interface?
Yes. A PCIe x4 interface requires 32 differential pairs plus sideband signals, totaling more than 40 connections; the 40-position QTE-020-05-F-D-A is well-suited for interfaces with similar pin counts. At SAMTEC's specified insertion loss and crosstalk performance for the QTE series, signals up to several GHz can be routed through the connector with acceptable SI margins for USB 3.0 (5 Gbps) and PCIe Gen 1 or Gen 2 applications.
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About SAMTEC
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $7.9800 | $399.00 |
| 100+ | $6.7200 | $672.00 |
| 250+ | $5.6400 | $1410.00 |
| 500+ | $4.8500 | $2425.00 |
| 1000+ | $4.1100 | $4110.00 |
| 2000+ | $3.7217 | $7443.38 |
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