TVS - Varistors, MOVs

TVS - Varistors, MOVs | Circuit Protection

TVS (Transient Voltage Suppression) diodes, varistors, and MOVs (Metal Oxide Varistors) are essential components in circuit protection, designed to safeguard electronic systems from voltage spikes, surges, and transient events. These devices respond rapidly to overvoltage conditions, diverting excess current away from sensitive components to prevent damage.

This category includes:
- TVS Diodes: Fast-acting devices for clamping transient voltages, ideal for low-voltage applications like data lines and IC protection.
- Varistors/MOVs: Voltage-dependent resistors that absorb high-energy surges, commonly used in power supplies, industrial equipment, and consumer electronics.

Buying Recommendations:
1. Voltage Rating: Select a varistor or TVS diode with a clamping voltage slightly above the operating voltage of your circuit.
2. Energy Absorption: For high-surge environments (e.g., power lines), prioritize MOVs with high joule ratings.
3. Response Time: TVS diodes offer nanosecond-level response critical for high-speed circuits.
4. Package Type: Consider form factors (e.g., surface-mount or through-hole) based on your PCB design.

Investing in quality TVS diodes or varistors ensures long-term reliability and compliance with safety standards like UL, IEC, and RoHS. Evaluate technical specs and application requirements to optimize protection for your design.