Why Do MOV Leads and PCB Traces Increase Residual Voltage?
Why can the voltage at a protected circuit exceed the metal oxide varistor (MOV) clamping voltage in the datasheet? The ...
Tag: Fuse Coordination
Can a Fuse Replace an MOV Thermal Disconnect?
If an AC input already has a fuse, does the MOV still need a thermal disconnect? The fuse does not ...
MOV Failure Modes and Thermal Protection
A metal-oxide varistor (MOV) protects a circuit by conducting transient current when voltage rises into its nonlinear region. That useful ...
MOV Protection Circuit Basics: Placement, Fusing and Layout
Learn where an MOV sits in a protection circuit, what a fuse can and cannot do, why thermal disconnection matters, ...
