MOVs are better for high-energy, slower transients on AC lines, while TVS diodes offer faster response times and lower clamping voltages for sensitive DC logic.
TVS Varistors & MOVs Component Intelligence
Engineered surge protection for AC/DC lines and sensitive board-level electronics.
What are TVS Varistors & MOVs components?
Varistors (MOVs) provide non-linear voltage clamping to protect circuits from transient surges. Selection requires matching the maximum continuous operating voltage (MCOV) to your line voltage and ensuring the energy absorption rating handles expected surge events.
How to Choose TVS Varistors & MOVs Components
Select based on the energy environment and clamping requirements of your specific power rail.
Operating Voltage
Ensure MCOV is higher than the maximum steady-state voltage, including expected fluctuations.
Energy Rating (Joules)
Match the Joule rating to the expected transient energy level to prevent component failure.
Peak Current
Verify the device can handle the maximum surge current without exceeding its clamping voltage.
Response Time
Choose multilayer varistors for nanosecond response in high-speed data lines.
Package Size
Balance PCB real estate with the physical size required for heat dissipation during surges.
Popular TVS Varistors & MOVs Components
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