ROV05-270K

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Varistors, also known as voltage-dependent resistors (VDRs), are typically used for surge protection, transient suppression and voltage clamping. MOVs, or metal-oxide varistors, are specialized type of varistors commonly used for transient and surge suppression. The ROV05-270K is a Radial Leaded Varistor (RLV) that can be used for various applications and is specifically designed to suppress transient voltages.

Applications

The ROV05-270K varistor can be used in many different applications, but is mainly used for transient protection and voltage clamping. It is a popular choice for protection of electronic systems from voltage and current transients. It can also be used in automotive applications, lighting systems, telecommunication equipment and in applications featuring high current and high frequency noise suppression. It is suitable for all types of DC applications including high frequency, sensitive electronic circuits, power stabilizers, and alarm systems.

Working Principle

The basic principle of operation of the ROV05 varistor is that it uses a nonlinear voltage-current characteristic to provide protection from transient over-voltages. When the voltage across the varistor exceeds a specific value (the clamping voltage), the varistor will create a low resistance path through which the current can flow. This will limit the voltage transient to the specified clamping voltage.

The ROV05-270K has a maximum rated operating voltage of 270VAC (RMS) and a operating temperature range of -40°C to 85°C. It is also capable of absorbing transients up to 6.25A (8/20µSec pulse). The typical performance of the varistor includes : rated power dissipation of 3W, peak surge current of 125A for a 8/20µSec pulse, and a peak pulse voltage of ±500V.

In summary, the ROV05-270K varistor is designed to offer reliable protection for various applications, such as motors and lamps, and is suitable for large current transient suppression, voltage clamping and over-voltage protection. It is capable of dissipating large amounts of power and can absorb transients up to 6.25A.

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