Overview
The PESD1CAN-UX, produced by Nexperia USA Inc., is a CAN bus ESD protection diode designed to safeguard two automotive Controller Area Network (CAN) bus lines from damage caused by ElectroStatic Discharge (ESD) and other transient events. This component is packaged in a small SOT323 (SC-70) surface-mounted device (SMD) plastic package, making it ideal for space-constrained applications.
This diode is engineered to provide robust protection against ESD and surge pulses, ensuring the reliability and integrity of CAN bus communications in automotive and other high-reliability environments.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Reverse Standoff Voltage (VRWM) | - | - | - | 24 | V |
| Diode Capacitance (Cd) | f = 1 MHz; VR = 0 V | - | 9.3 | 12 | pF |
| Peak Pulse Power (PPPM) | tp = 8/20 µs | - | - | 150 | W |
| Peak Pulse Current (IPPM) | tp = 8/20 µs | - | - | 3 | A |
| Clamping Voltage (VCL) | IPP = 1 A | - | - | 35 | V |
| Junction Temperature (Tj) | - | - | - | 150 | °C |
| Ambient Temperature (Tamb) | - | -55 | - | 150 | °C |
| Storage Temperature (Tstg) | - | -65 | - | 150 | °C |
| ESD Voltage (VESD) | IEC 61000-4-2 (contact discharge) | - | - | 23 kV | - |
Key Features
- One small SOT323 package to protect two CAN bus lines, ideal for space-constrained applications.
- Low clamping voltage: VCL = 35 V at IPP = 1 A, ensuring minimal impact on signal integrity.
- Peak pulse power: PPPM = 150 W at tp = 8/20 µs, providing robust protection against transient events.
- Ultra-low leakage current: IRM < 1 nA, minimizing power consumption.
- Diode capacitance matching: ΔCd/Cd = 0.1%, ensuring consistent performance across the protected lines.
- ESD protection up to 23 kV (IEC 61000-4-2, level 4) and surge protection according to IEC 61000-4-5.
- AEC-Q101 qualified, making it suitable for automotive applications.
Applications
The PESD1CAN-UX is primarily designed for the protection of two automotive Controller Area Network (CAN) bus lines. It is suitable for use in various automotive and industrial applications where robust ESD and surge protection is critical.
- Automotive systems: Protects CAN bus lines in vehicles, ensuring reliable communication between control units.
- Industrial control systems: Safeguards against ESD and surge pulses in industrial automation and control systems.
- Other high-reliability environments: Used in any application requiring protection of signal lines from transient events.
Q & A
- What is the primary function of the PESD1CAN-UX?
The primary function of the PESD1CAN-UX is to protect two CAN bus lines from damage caused by ElectroStatic Discharge (ESD) and other transient events.
- What package type is the PESD1CAN-UX available in?
The PESD1CAN-UX is available in a SOT323 (SC-70) surface-mounted device (SMD) plastic package.
- What is the peak pulse power rating of the PESD1CAN-UX?
The peak pulse power rating of the PESD1CAN-UX is 150 W at tp = 8/20 µs.
- What is the clamping voltage of the PESD1CAN-UX?
The clamping voltage of the PESD1CAN-UX is 35 V at IPP = 1 A.
- Is the PESD1CAN-UX AEC-Q101 qualified?
Yes, the PESD1CAN-UX is AEC-Q101 qualified, making it suitable for automotive applications.
- What are the ESD protection levels of the PESD1CAN-UX?
The PESD1CAN-UX provides ESD protection up to 23 kV (IEC 61000-4-2, level 4).
- How should the PESD1CAN-UX be placed on the circuit board for optimal performance?
The device should be placed as close to the input terminal or connector as possible, and the path length between the device and the protected line should be minimized.
- What is the junction temperature range of the PESD1CAN-UX?
The junction temperature range of the PESD1CAN-UX is -55°C to 150°C.
- Is the PESD1CAN-UX lead-free?
Yes, the PESD1CAN-UX is lead-free.
- What standards does the PESD1CAN-UX comply with?
The PESD1CAN-UX complies with IEC 61000-4-2, IEC 61000-4-5, and MIL-STD-883 standards.
