Metal oxide verister (MOV)
Understanding Metal Oxide Varistors (MOVs): The Silent Protectors of Your Electronics In today’s world, where electronics power nearly every aspect of our lives, protecting those devices from power surges is critical. Enter the Metal Oxide Varistor (MOV) , a small yet powerful device that plays a key role in surge protection. Whether it's the sudden strike of lightning or fluctuations in the power grid, MOVs work tirelessly to keep your electronics safe. What Is a Metal Oxide Varistor (MOV)? A Metal Oxide Varistor (MOV) is a voltage-dependent resistor used to protect electrical and electronic devices from transient voltage spikes, such as those caused by lightning or power surges. It is commonly found in surge protectors, power supplies, and electronic circuits. MOVs are made primarily from zinc oxide, along with small amounts of other metal oxides such as bismuth, cobalt, or manganese. The internal structure of an MOV is composed of many tiny grains of zinc oxide, and at the bo