ROV20H560L

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The ROV20H560L is a radial leaded, highly reliable, unidirectional or bidirectional voltage suppressor. This device is aptly designed to limit overvoltage protection for all types of telecommunication systems, computer systems, TV receivers, power supplies and even power equipment.

The radial leaded ROV20H560L can withstand a maximum surge impulse up to 20kV. Available in disk form and in axial form, this device is offered with the majority of its components in a wide variety of voltage and wattage ratings.

As an important component in the telecom system, the ROV20H560L also operates in conjunction with the programmed over-voltage protection circuits during transient conditions. It is also used in general applications, such as surge suppressors, snubber circuits, TV receivers, computer systems, power sources, and protection circuits.

ROV20H560L belongs to the TVS - Varistors, MOVs (Transient Voltage Surge Suppressor / Moveable Voltage Suppressor) family. TVS and MOVs are both voltage protecting components. The difference between MOVs and TVS is that MOVs are designed to handle high voltage transients while TVS devices are designed to provide both general and specific types of protection from voltage fluctuations. TVSs provide additional protection in the form of internal series current limiting, as well as safe discharging of excessive stored energy.

ROV20H560L is made of zinc oxide (ZnO) and MOVs made of polymeric material due to its low cost and able to handle high surge current and fast reaction time there are preferred to the zinc oxide varistors. Due to its strong resistance to surge, MOVs are used in various fields such as electronic circuits, power electronics, power supplies, telecommunications and computer systems.

ROV20H560L devices are very simple in terms of their working principle. In general, the device behaves like a variable resistor during normal operation. Its resistance is dependent on the applied voltage and inversely proportional to the applied voltage. When the applied voltage exceeds the prescribed level, the MOV will start to break down and pull its resistance down. This sudden drop in resistance decreases the voltage, thus providing protection to the connected circuit.

In cases of voltage spikes, the ROV20H560L is able to absorb the electrical energy before it reaches the protected devices, thus limiting the voltage that is available to the devices. The device is able to do this due to its unique characteristics wherein the resistance of the device drops at a higher voltage during operation.

To summarize, the ROV20H560L is a radial leaded, highly reliable, unidirectional or bidirectional voltage suppressor designed for use in applications such as telecom systems, computer systems, TV receivers, power supplies and power equipment. It belongs to the TVS - Varistors, MOVs family and is made of zinc oxide or polymeric material. Its working principle is based on the device behaving like a variable resistor during normal operation and when the applied voltage exceeds the prescribed level, the MOV will start to break down and pull its resistance down, thus providing protection to the connected circuit.

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