ROV07H301K-S

The ROV07H301K-S is an Active Metal Oxide Varistor (varistor). It is a nonlinear electronic component used primarily in surge protection and noise filtering applications. Varistors are also known as Voltage Dependent Resistors (VDRs) and can be used to protect against high voltage pulses such as lightning strikes. The ROV07H301K-S is designed to be used in low voltage applications and has a maximum working voltage of 300V AC.

Varistors are composed of a metal oxide layer that is deposited on a substrate and then fired to give it a crystalline structure. This metal oxide layer is the active component in the varistor and is what provides the nonlinear characteristics. When a voltage higher than the rated voltage is applied, the varistor’s metal oxide layer changes from a low resistance state to a high resistance state, effectively limiting the voltage to the rated voltage. When the voltage is below the rated voltage, the metal oxide layer returns to its low resistance state allowing current to pass through.

The ROV07H301K-S is a heat-sink version of the Active Metal Oxide Varistor. The heat-sink version operates at a lower temperature than the traditional varistor allowing it to be used in more compact enclosures and with higher power levels. The ROV07H301K-S also features a reverse voltage protection circuit that can protect against reverse polarity or transient overvoltage conditions.

The ROV07H301K-S is used in numerous applications such as AC/DC adapters, power supplies, and telecommunications equipment. It is also used in industrial environments for noise filtering and surge protection of sensitive electronic components. The device can absorb up to 10kA of surge energy with a maximum clamping voltage of 300V.

In summary, the ROV07H301K-S is a heat-sink version of an Active Metal Oxide Varistor (MOV) used in surge protection and noise filtering applications. It is designed specifically for use in low voltage applications such as AC/DC adapters, power supplies, and telecommunications equipment. The device is capable of withstanding up to 10kA of surge energy and provides reverse voltage protection.