Overview
The PESD3V3S2UT from Nexperia is a compact, unidirectional, dual-line ESD protection diode designed for safeguarding sensitive high-speed data interfaces. Packaged in a small SOT23 footprint, it provides robust surge and ESD protection with immunity levels exceeding 30 kV (IEC 61000-4-2). With low clamping voltage, low leakage current, and solid transient handling capability, this device is ideal for modern electronic systems that demand reliable and space-efficient protection components.
Despite its small size, the PESD3V3S2UT offers impressive performance, making it suitable for communication ports, consumer electronics, and high-speed digital interfaces.
Core Parameters
| Parameter | Value |
|---|---|
| Reverse Standoff Voltage (VRWM) | 3.3 V |
| Breakdown Voltage (VBR @ 5 mA) | 5.2–6 V |
| Clamping Voltage (VCL @ 18 A)** | 20 V |
| Max Peak Pulse Power (8/20 µs)** | 330 W |
| Max Peak Pulse Current (IPPM)** | 18 A |
| Diode Capacitance (Cd @ 1 MHz) | 207–300 pF |
| Reverse Leakage Current (IRM) | < 700 nA |
| ESD Rating (IEC 61000-4-2) | >30 kV (contact) |
| Package | SOT23 |
Data sourced from the PESD3V3S2UT datasheet
Features
- Unidirectional protection for two signal lines
- 30 kV ESD robustness (IEC 61000-4-2 level 4)
- 18 A surge current capability (8/20 µs waveform)
- Low clamping voltage for improved system reliability
- Ultra-low reverse leakage current
- Compact SOT23 package optimized for space-constrained designs
- Suitable for both positive and negative signal polarities
- Ideal for high-speed digital interfaces
Typical Application Scenarios
| Application | Description |
|---|---|
| Computers & Peripherals | Protection for USB, video ports, and I/O interfaces |
| Communication Systems | RF modules, antenna ports, network interfaces |
| Audio & Video Devices | HDMI, display ports, audio lines |
| High-Speed Data Lines | LVDS, SPI, UART, and other high-speed buses |
| Parallel Ports / Industrial I/O | Protection against surge and ESD stress |
Performance Comparison
| Specification | PESD3V3S2UT | Comparable ESD Diode A | Comparable ESD Diode B |
|---|---|---|---|
| VRWM | 3.3 V | 3.3 V | 3.3 V |
| Peak Pulse Current | 18 A | 12 A | 15 A |
| Peak Pulse Power | 330 W | 250 W | 280 W |
| Capacitance | 207–300 pF | 350 pF | 280 pF |
| Clamping Voltage | 20 V | 25 V | 23 V |
| ESD Rating | >30 kV | 15 kV | 20 kV |
The PESD3V3S2UT clearly stands out with superior surge capability and significantly lower clamping voltage, making it a strong option for high-reliability system designs.
Conclusion
The PESD3V3S2UT, along with its ordering variant PESD3V3S2UT,215, offers high-performance ESD and surge protection tailored for modern electronics. With its compact SOT23 footprint, excellent clamping characteristics, and ultra-high ESD robustness, it delivers reliable, cost-efficient protection for high-speed and consumer systems.
Manufacturer Profile
Nexperia is a leading global semiconductor manufacturer specializing in discrete devices, logic components, and MOSFETs. Known for their high-reliability solutions and efficient packaging technologies, Nexperia provides robust protection, power, and signal conditioning components for a wide range of applications. The PESD3V3S2UT is a strong example of their expertise in ESD and surge protection devices.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
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