ROV05-561K-S

TVS-Varistors, MOVs are one of the most used electrical protection components. It is used to absorb high voltage or current that might occur from transient peak voltage or current. ROV05-561K-S, belonging to the category of TVS-Varistors, MOVs, is such a component. This section will discuss about the application field of ROV05-561K-S as well as the working principle.

Application Field

ROV05-561K-S is a type of radially-leaded TVS-Varistor, MOV. It is most commonly used in telecom sector, effectively protecting high-speed, high-current USB and Ethernet ports, data signals, audio and video lines, against transient peak voltage or current. ROV05-561K-S also caters to common application needs in the industrial sector. Besides, this ROV05-561K-S is also suitable for automotive, office and home appliance applications.

Working Principle

ROV05-561K-S, as a type of TVS-Varistor, MOV, is designed to absorb surges commonly seen in AC, DC, lighting, clamping and signal lines. The working principle of ROV05-561K-S is quite simple: it flashes up to its maximum rated working voltage on application of an external AC or DC voltage and diverts the excess current away so as to save the connected device from destruction. The working mechanism of this type of TVS-Varistor is known as peak power or clamping response. When there is transient peak current, the clamping voltage of the MOV will rise and dissipate the energy by limiting the voltage. This process is known as power or energy clamping.

The working mechanism of ROV05-561K-S is further explained in this way. It is important to note that the outer clamping voltage can be considered as the junction voltage of the MOV in the rolling structure. This junction voltage is the key factor in the clamping process of MOVs. In the rolling structure, as the external transient voltage increases, the junction voltage of the MOV is increased proportionally. Therefore, the clamping voltage of the MOV will increase accordingly in the clamping process. When the junction voltage of the MOV reaches its maximum rated working voltage, it is said to have flashed up and will dissipate the energy by limiting the transient voltage or current such that the connected device is protected from destruction.

Conclusion

To sum up, ROV05-561K-S is a type of TVS-Varistor, MOV which is able to protect devices against transient peak voltage or current. Its application field covers telecom, industrial, automotive, office and home appliance sectors. Its working principle is based on the rolling clamping structure and its junction voltage is the key factor in the clamping process. Through studying its application field and working principle, more information can be obtained to make a better decision when selecting a suitable electrical protection component.