QTE-020-05-L-D-A SAMTEC Connector (Other) In Stock
SAMTEC QTE-020-05-L-D-A is a 20-position dual-row Q Strip high-speed board stacking header with 0.80 mm pitch, polarized ELP design with locating posts, and 10 µin gold-over-nickel contacts for reliable high-frequency interconnects. RoHS compliant with worldwide shipping from stock.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- QTE-020-05-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 Q Strip board stacking header at 0.80 mm pitch with integrated ground plane for high-speed signal integrity above 1 Gbps
- Polarized ELP (Extended Logical Pattern) design with locating posts ensures single-orientation mating and prevents connector damage during assembly or field servicing
- 10 µin gold over 50 µin nickel mating contacts on phosphor bronze for corrosion resistance and reliable low contact resistance across extended operating temperature range
Applications
The QTE-020-05-L-D-A is designed for high-speed board-to-board and mezzanine stacking applications in networking equipment, FPGA evaluation boards, and telecommunications blade servers where controlled-impedance 20-pin dual-row connectivity is required at 0.80 mm pitch. The ELP polarized, locating-post design ensures error-free mating in field-replaceable module systems, reducing assembly mistakes in complex multi-board chassis. Its Q Strip ground plane architecture supports differential signaling at multi-gigabit data rates while maintaining a compact footprint for high-density PCB designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8.68 |
| Additional Feature | E.L.P., POLARIZED |
| Board Mounting Option | LOCATING POSTS |
| Body Breadth | 0.235inch |
| Body Depth | 0.719inch |
| Body Length | 0.788inch |
| 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 | 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 | Costa Rica, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish and pitch does the QTE-020-05-L-D-A provide for high-speed board stacking?
The QTE-020-05-L-D-A uses 10 µin gold plated over 50 µin nickel on phosphor bronze contacts, arranged at a 0.80 mm pitch across 20 dual-row positions. This gold-over-nickel finish provides stable contact resistance below 20 milliohms and supports reliable mating performance in high-speed interfaces at data rates exceeding 1 Gbps per channel.
How does the ELP polarized locating-post design of QTE-020-05-L-D-A prevent assembly errors in multi-board systems?
The ELP (Extended Logical Pattern) polarization combined with locating posts creates a physical keying scheme that forces the 20-pin board stacking connector into a single correct orientation, preventing 180-degree mis-insertion that could short power and ground pins or damage differential signal pairs. This mechanical design is particularly valuable in field-replaceable blade assemblies where 3.3 V, 5 V, or 12 V supply pins are adjacent to signal pins across the 0.80 mm pitch footprint.
When would a designer choose the 0.80 mm pitch QTE-020-05-L-D-A over a 1.27 mm pitch alternative for mezzanine stacking?
When board area constraints require fitting 20 dual-row stacking connections into less than 17 mm of PCB length, the 0.80 mm pitch of QTE-020-05-L-D-A achieves roughly 37 percent space savings compared to a 1.27 mm pitch equivalent. The Q Strip ground plane architecture also provides better crosstalk isolation between differential pairs at data rates above 3 Gbps, making it preferable to 1.27 mm alternatives in high-speed telecom or networking designs where both density and signal integrity are non-negotiable.
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