One of the most widely used of these is the varistor.

The cheapest kind may use just one varistor, from hot (live, active) to neutral.

Parallel to each valve function, there is a surge arrester in the form of a varistor.

A varistor's function is to conduct significantly increased current when voltage is excessive.

The main parameter affecting varistor life expectancy is its energy (Joule) rating.

A varistor is typically deemed to be fully degraded when its "clamping voltage" has changed by 10%.

A varistor is an electronic component with a "diode-like" nonlinear current-voltage characteristic.

In general, the primary case of varistor breakdown is localized heating caused as an effect of thermal runaway.

Follow-through current as a result of a strike may generate excessive current that completely destroys the varistor.

Parallel to each thyristor module a capacitor and parallel to each valve function a varistor is switched.

A varistor is also known as Voltage Dependent Resistor or VDR.

Important parameters are the varistor's energy rating in joules, operating voltage, response time, maximum current, and breakdown (clamping) voltage.

In the most common type of surge protector, a component called a metal oxide varistor, or MOV, diverts the extra voltage.

Metal oxide varistor (MOV)

The most common type of varistor is the metal-oxide varistor (MOV).

The purpose is to divert damaging lightning induced transients safely to ground through property changes to its varistor in parallel arrangement to the conductor inside the unit.

Another design alternative applies a family of products that are known as metal-oxide varistor (MOV) that protect electronic circuits and electrical equipment.

A surge protector or simple capacitor or varistor can protect against most overvoltage conditions, while a lightning arrestor protects against severe spikes.

Other uses for grog is processing ZnO Metal Oxide Varistor (MOV).

Metal oxide varistor (MOV), surge absorber, TVS - Over-voltage protection.

Multi-layer varistor (MLV) devices provide electrostatic discharge protection to electronic circuits from low to medium energy transients in sensitive equipment operating at 0-120 volts dc.

The probability of catastrophic failure can be reduced by increasing the rating, either by using a single varistor of higher rating or by connecting more devices in parallel.

In some DC circuits, a varistor or two inverse-series Zener diodes (collectively called a Transil or Transorb) may be used instead of the simple diode.

They will also include high energy overvoltage MOV (Metal Oxide Varistor) protection, and circuit over-current protection in the form of a Polyswitch.

It is well known as NTC Thermistor and varistor manufacturer in Taiwan, as well as the first public listed cooperation in Taiwan's protective component industry.