Description: An ESD (Electrostatic Discharge) protection device safeguards electronic components from voltage spikes caused by static electricity.
Common Types:
- TVS Diodes (Transient Voltage Suppression)
- Varistors (MOVs)
- ESD Suppression Diodes (low-capacitance)
- Polymers (PTC + ESD combo)
Applications:
- USB ports
- HDMI and other high-speed interfaces
- GPIO lines
- Power supply inputs
Key Parameters:
- Breakdown Voltage (Vrwm)
- Clamping Voltage (Vc)
- Peak Pulse Current (Ipp)
- Capacitance (for high-speed signals)
- Response Time (<1 ns for TVS diodes)
Design Tips:
- Place close to connector or entry point
- Minimize trace length to reduce inductance
- Use low-capacitance devices for high-speed lines
- Ensure solid ground connection