SEAF-20-05.0-STL-05-1-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SEAF-20-05.0-STL-05-1-A-K-TR is a 100-position SEARAY open-pin-field array socket with 0.050" (1.27 mm) pitch supporting high-speed differential signal routing. It features a 5.0 mm stacking height and SMT surface mount termination rated for data rates up to 25+ Gbps. Available in tape and reel with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 100
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100-position open-pin-field array at 0.050" (1.27 mm) pitch delivers high contact density for high-speed differential signal interconnects in compact board-to-board stacks
- 5.0 mm stacking height with surface mount termination enables precise board-to-board spacing in multi-PCB system architectures up to 25+ Gbps per differential pair
- SEARAY open-pin-field design allows flexible routing assignment across all 100 positions, supporting mixed signal-power and high-speed differential lane configurations
Applications
The SEAF-20-05.0-STL-05-1-A-K-TR is designed for high-speed board-to-board interconnect in FPGA mezzanine, FMC-compatible, and high-bandwidth compute modules where 100 open-pin-field positions at 0.050" pitch must carry differential pairs at rates up to 25 Gbps per lane. It is also used in radar front-end modules, software-defined radio platforms, and data center line cards where a 5.0 mm stacking height and SMT footprint must accommodate dense, low-crosstalk high-speed signal routing between two parallel PCBs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and position count does the SEAF-20-05.0-STL-05-1-A-K-TR provide, and how does this compare to a standard 2.54 mm header?
The SEAF-20-05.0-STL-05-1-A-K-TR uses a 0.050" (1.27 mm) pitch with 100 positions in an open-pin-field array, achieving twice the contact density per linear millimeter compared to a standard 2.54 mm pitch header. This allows a 100-position interface to occupy roughly half the PCB footprint, critical in FMC mezzanine and FPGA daughter card designs where board area is tightly constrained.
What data rate does the SEAF-20-05.0-STL-05-1-A-K-TR support for high-speed differential signaling?
The SAMTEC SEARAY SEAF series supports differential data rates exceeding 25 Gbps per lane when paired with its mating connector and maintained within the recommended PCB stack-up and trace length guidelines. At these speeds, the 0.050" pitch open-pin-field layout allows designers to route SerDes, LVDS, or JESD204B differential pairs through the connector without mandatory lane assignment constraints, reducing layout iterations.
What does the 5.0 mm stacking height of the SEAF-20-05.0-STL-05-1-A-K-TR mean for a multi-board system design?
The 5.0 mm stacking height sets the air gap between the two mated PCBs at 5.0 mm when the SEAF-20-05.0-STL-05-1-A-K-TR is installed and mated. This spacing is sufficient to route tall components such as decoupling capacitors and small inductors on the inner-facing side of either board, and it defines the total mechanical envelope height of the mezzanine stack for enclosure clearance calculations.
How does the open-pin-field design of the SEAF-20-05.0-STL-05-1-A-K-TR benefit FPGA mezzanine card development?
The open-pin-field architecture of the SEAF-20-05.0-STL-05-1-A-K-TR assigns no fixed function to any of the 100 positions, letting FPGA designers allocate each contact as a single-ended I/O, one half of a differential pair, a power rail, or a ground return as needed by the current pin-out. This flexibility eliminates the need to route signals around fixed-function reserved pins, reducing high-speed trace lengths by up to 20% and lowering signal integrity risk on multi-gigabit differential interfaces.
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
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”