ROV07H821K-2

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TVS (Transient Voltage Suppressors) are components used to protect electrical systems against transient phenomena with high peak values, which have the durability to withstand multiple high transient impulses. Varistors, MOVs (Metal Oxide Varistors) are one of the most popular type of TVS.

ROV07H821K-2 is one of the MOVs from the ROV07H series, they are designed with a glass-to-metal-sealed housing and built-in silicon chip technology. The isolating strength between the cathode and anode of ROV07H range from 500V to 3000V, with nominal operating voltage from 0.5V to 1.5V. It is also capable of withstanding up to 8kA of surge current.

ROV07H821K-2 come with an 8mm x 10.5 mm axial lead with an operatin temperature ranging from -55℃ to 125℃, making them suitable for industrial applications in specially harsh enviroments. The impressive surge capabilities combined with the operating temperature, make ROV07H821K-2 an ideal choice for a wide variety of applications, such as:

• Over Voltage protection for manual reset IC
• Over voltage protection for datasheet protection
• Lightning and surge protection for automotive electronics
• Circuit board protection for home electronics
• Electronic systems in military applications

The name Metal Oxide Varistors, MOVs, stands for their construction. The principle of operation of ROV07H821K-2 is the same as other MOV Varistors. ROV07H821K-2 has an anode and a cathode, corresponding to a terminal and a conductor, and an insulating layer between the two. When an applied voltage exceeds the breakdown voltage of the Varistor, the electrons begin to move from anode to the cathode. This occurrence not only causes the voltage across the MOV to decrease, but also involves the release of a certain amount of energy. The energy release can be observed as a decrease in the capacitance of the MOV.

In summary, ROV07H821K-2 is one of the most reliable Varistors available. The MOVs are designed to provide effective and efficient protection against transient voltage spikes, and having the ability to withstand multiple high transient impulses. ROV07H821K-2 is a good choice for an array of voltage protection applications for many different electronic systems, making them suitable for both commercial and military applications.

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