ROV07-560K

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Varistors, also known as voltage-dependent resistors (VDRs), are components of electrical circuit blocks primarily designed to protect sensitive electrical devices from transient or transient voltage spikes due to lightning strikes, power outages, or other voltage events. The ROV07-560K is a high-value varistor. With a low working voltage, these devices are ideal for protecting delicate circuits with the highest accuracy. Additionally, their low-clamping voltage makes them suitable for low power circuits. In this article, we will explain the application field and working principle of the ROV07-560K.

The application field of the ROV07-560K is wide-ranging. This varistor is frequently used as a first line of defence in telecom networks and data centres as well as high-end audio/visual electronics. Moreover, the device is used as an integral part of appliances such as vacuum cleaners and washing machines. ROV07-560K varistors also find widespread use in defense-related industries that include aerospace, marine, and automotive.

With regards to its working principle, the ROV07-560K is a nonlinear resistor. Primarily, its function is to shield circuits from excessive voltage. When voltage across the device exceeds a preset value, the ROV07-560K works as a short circuit and dissipates the surge current. The voltage level at which the device switches from its high-resistance state to its low-resistance state depends on the device’s characteristics. This event is known as clamping.

The ROV07-560K is made up of a variety of materials. The device is constructed with high-grade zinc oxide ceramic and stored in a metal casing which provides it with increased protection from external impacts. Additionally, the device is equipped with a thermal fuse which stops excessive current flow if the varistor’s temperature were to increase too drastically. Furthermore, the device’s highly inductive nature allows it to balance out the alternating voltages. This is vital in applications involving currents that are subject to frequent variations.

In conclusion, ROV07-560K varistors are designed to protect delicate electronic circuits from transient voltage spikes caused by lightning strikes, power surges, or other external electrical events. Its wide application field ranging from telecom networks to automotive industries combined with its low working voltage makes it an ideal choice for circuit protection. The device is made up of various materials and is equipped with a thermal fuse for increased protection against voltage events.

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