⚡ Overview
eSATA is a high-speed external data interface commonly used for external hard drives and storage devices. It supports hot-swapping for ease of use, but frequent plugging and unplugging exposes the interface to electrostatic discharge (ESD). Without proper protection, ESD can lead to device malfunction, data loss, or shortened product lifespan.
eSATA's theoretical transfer rate can reach 3 Gbps, but actual rates are typically between 1.5 Gbps and 3 Gbps, depending on the limitations of the hard drive and motherboard—nevertheless, its transfer rate is still significantly higher than USB 2.0 or IEEE 1394. High-speed performance requires extra attention to signal integrity, mechanical strength, electromagnetic interference immunity, and cable flexibility.
🚀 Semiware‘s Solutions
To address these challenges, Semiware has introduced the SEULC0524PA high-performance electrostatic discharge suppressor, designed specifically for eSATA and other high-speed interfaces.
🔋 Why Choose SEULC0524PA?
- Fast Response: Nanosecond-level reaction to transient voltages
- Low Leakage Current: Minimal impact on high-speed signal integrity
- High Reliability: Protects each input/output pin from destructive ESD events
- Compact Package: DFN2510-10L fits space-constrained designs
📌 SEULC0524PA Key Parameters
| Parameters | Value |
| Package | DFN2510-10L |
| Maximum Working Voltage (Vrwm) | 5V |
| Breakdown Voltage (Vbr min) | 6V |
| Clamping Voltage (Vc@Ipp max) | 11V |
| Maximum Peak Pulse Current (Ipp max) | 4A |
| ESD Protection (Contact) | ±8 kV |
| ESD Protection (Air) | ±15 kV |
| Maximum Leakage Current (IR max) | 0.5 μA |
| Maximum Capacitance (Cj max) | 0.6 pF |
✔️ Text Conditions
The SEULC0524PA has been tested according to IEC61000-4-2 to ensure it can withstand typical electrostatic discharge (ESD) scenarios:
- Contact discharge: 8 kV
- Air discharge: 15 kV
These test conditions simulate real-world electrostatic discharge events caused by frequent cable handling, ensuring the safe and reliable operation of your eSATA interface.
Application Diagram

DFN2510 Package

For more product details, please visit the website:
https://en.semiware.com/tvs-array/seulc0524pa
About Semiware
Semiware provides a comprehensive lineup of circuit protection devices. Leveraging semiconductor technology and end-product application expertise, Semiware serves customers across electronics, automotive, and industrial markets, delivering reliable solutions for high-speed interfaces and sensitive electronic components.
Learn more at our official website.↗️ https://en.semiware.com/


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