QSE-020-01-L-D-A-K-TR SAMTEC Connector (Other) In Stock
The SAMTEC QSE-020-01-L-D-A-K-TR is a 40-position (20 per row) dual-row board-stacking socket connector with 0.100 inch pitch, featuring positioning pins for precise PCB alignment and tape-and-reel packaging for automated assembly. Designed for reliable high-density board-to-board stacking interconnects in compact electronic systems.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- QSE-020-01-L-D-A-K-TR 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
- 40-position dual-row board stacking socket on 0.100 inch (2.54 mm) pitch for high-density board-to-board interconnect
- Positioning pin feature enables accurate PCB alignment during board stacking assembly, reducing misregistration errors
- Tape-and-reel packaging supports high-volume automated pick-and-place assembly lines for consistent production throughput
- Low-profile socket body (0.12 inch depth) minimizes stacking height in space-constrained multi-board system designs
Applications
The QSE-020-01-L-D-A-K-TR is used in board-stacking architectures for embedded computing modules, industrial controller expansion boards, and test-and-measurement equipment where a 40-pin dual-row interface must reliably interconnect two PCBs. Its positioning pin design is particularly valuable in robotics and industrial automation systems requiring repeatable board alignment during field maintenance. The tape-and-reel format enables efficient automated SMT assembly in high-volume production of networking, telecom, and modular embedded platform hardware.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| YTEOL | 8.68 |
| Additional Feature | TAPE & REEL PACKAGING |
| Board Mounting Option | POSITIONING PIN |
| Body Breadth | 0.285inch |
| Body Depth | 0.12inch |
| Body Length | 0.837inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | MATTE TIN |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | NOT SPECIFIED |
| Contact Pattern | RECTANGULAR |
| Contact Style | BELLOWED TYPE |
| DIN Conformance | NO |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.031inch |
| 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 | 5.7404mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 1.3A |
| 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, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the SAMTEC QSE-020-01-L-D-A-K-TR provide for board stacking applications?
The QSE-020-01-L-D-A-K-TR is a 40-position dual-row socket connector with 20 contacts per row arranged on a 0.100 inch (2.54 mm) pitch. This standard pitch ensures compatibility with SAMTEC's mating QSH or equivalent stacking header series, enabling reliable 40-signal board-to-board connections in compact embedded computing and expansion card designs.
What role do the positioning pins play in QSE-020-01-L-D-A-K-TR board assembly, and what tolerances do they support?
The positioning pins in the QSE-020-01-L-D-A-K-TR mechanically register the connector body to corresponding PCB holes, typically 1.02 mm diameter, before soldering, ensuring the 40 contacts align accurately with their PCB pads during wave or reflow solder operations. This reduces co-planarity errors to within 0.1 mm, which is critical for achieving reliable solder joints across all 40 positions in automated SMT assembly environments.
In what stacked-board system configurations is the QSE-020-01-L-D-A-K-TR commonly used, and how does its body height affect overall stack-up?
The QSE-020-01-L-D-A-K-TR with a body depth of 0.12 inch is used in processor-to-peripheral board stacking configurations, such as CPU modules mating with I/O expansion boards in embedded industrial computers and SBC (single board computer) systems. The low 0.12-inch socket body height, combined with the mating header stack height, allows designers to achieve compact inter-board spacing, keeping the total PCB stack below 10 mm in many form factors.
When should a designer select the QSE-020-01-L-D-A-K-TR over a comparable wire-to-board connector for a 40-signal interconnect?
The QSE-020-01-L-D-A-K-TR is preferred over wire-to-board alternatives when two PCBs must be mechanically stacked in a fixed spatial relationship, eliminating harness routing complexity and reducing overall assembly height. It supports 40 signals at 0.100 inch pitch in a body measuring only 0.837 inch long by 0.285 inch wide, offering a far more compact footprint than a 40-pin IDC harness connector, which would add 10 mm or more in both cable volume and routing overhead.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”