ROV14-201K-S

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TVS (Transient Voltage Suppressors) and MOVs (Metal Oxide Varistors) are components used for surge protection in applications. Both are passive components that absorb energy from a spike in voltage or current. However, while the technologies are similar, there are some key differences that set the two apart.

ROV14-201K-S is a type of TVS-Varistor. This protection device is used to provide protection against overvoltage transients in power supply and data line applications. It is however marketed for use primarily in TV and automotive applications.

The ROV14-201K-S is a bidirectional varistor, meaning it is able to absorb energy from both positive and negative polarity of an overvoltage spike. Due to this, it can be used in applications with AC or DC supply current. It has a non-linear voltage-current characteristic. It works by allowing a low resistance during normal operation, but changes to a high resistance in the presence of high invasive overloads.

The ROV14-201K-S offers a variety of advantages as a form of surge protection. It does not contain any toxic or hazardous substances and can be used in a wide variety of applications. It is able to dissipate the energy associated with overvoltage transients and offers high surge capability. Additionally, it has a very low operating current and is able to withstand a high number of surges.

There is however one key disadvantage of the ROV14-201K-S. As it has a non-linear characteristic, its capacitance may increase when subjected to higher voltage levels. This could potentially lead to a failure of the circuit if the voltage levels are too high.

Unlike the ROV14-201K-S, the MOV is primarily used to absorb energy from positive voltage spikes only. It is a linear device, and its capacitance is not affected when subjected to different voltage levels. This makes it more reliable than the ROV14-201K-S for applications which require long-term stability.

MOVs are a good choice for applications requiring high surge protection. They are able to absorb a high number of surges, as well as having a very low operating current. Additionally, they have a good temperature coefficient and a low leakage current. However, they are large in size compared to other types of surge protective devices and are less reliable in the long-term.

In conclusion, both the ROV14-201K-S and the MOV are suitable for applications requiring surge protection. However, the ROV14-201K-S is best used for AC or DC supply currents and offers better surge protection, while the MOV should be used for high surge protection applications requiring stability in the long-term.

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