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MOVs are used to protect electronic circuits from voltage spikes and surges.They act as voltage-dependent resistors, offering high resistance under normal operating conditions.When a voltage spike occurs, the MOV's resistance drops significantly, allowing the excess voltage to be diverted to ground, thus protecting the circuit.Key Features:Voltage Rating: The maximum continuous voltage that the MOV can withstand.Current Rating: The maximum surge current that the MOV can handle without failing.Clamping Voltage: The voltage level at which the MOV starts conducting significantly to limit the voltage spike.Response Time: The time it takes for the MOV to respond to a voltage surge.