ERZ-VF2M151

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ERZ-VF2M151 Application Field and Working Principle

Metal oxide varistor (MOV) is a kind of voltage-dependent resistor (VDR) that consists of sintered surface-mounted components which work by shunting excess current to ground when a specific voltage is reached. This phenomenon is known as "clamping". The ERZ-VF2M151 is a state-of-the-art, shunt-type, voltage-dependent, nonlinear, two-layer, metallic oxide varistor.

MOVs consist of sintered elements that can withstood high voltages and are typically used in applications such as surge protectors, which protect electrical circuits from high voltage spikes. High voltage spikes can occur from lightning, among other sources, and can cause significant damage to electrical equipment if left unprotected. The ERZ-VF2M151 is able to clamp, or limit, these higher voltages, thus protecting the equipment or circuity downstream from the device.

The ERZ-VF2M151 is designed to have a specific range of voltage and current ratings, allowing it to be used in a wide variety of applications. It can be used in high AC-voltage applications, as well as lower voltage applications. It is also designed to have excellent characteristics such as superior clamping performance, high surge capability, and low capacitance. The varistor can also handle temperatures of up to 125°C, making it suitable for a wide variety of environments, including high temperature applications.

The working principle of ERZ-VF2M151 is based on the "diode principle". When the voltage applied across the two terminals of the varistor is below the threshold of conduction, the varistor acts like an open circuit and offers very high impedance, thus blocking current. When the voltage applied across the two terminals of the varistor exceeds the threshold of conduction, the varistor acts like a short-circuit, allowing current to flow through the device, thus allowing it to absorb the excess current. When the voltage returns to its normal level, the varistor goes back to its high impedance state and blocks the current again.

The two-layer design of the ERZ-VF2M151 varistor helps to improve the performance of the device. The two-layer construction helps to reduce voltage and current leakages across the MOV device, thus increasing the peak pulse currents which can be handled and reducing the risk of device failures due to temperature increase.

The ERZ-VF2M151 varistor is a versatile tool for protecting a wide variety of electronic circuits and devices from potential damage caused by high voltage spikes. It can be used in high voltage applications, as well as in low power circuits, and is designed to provide reliable protection with low capacitance and high surge capability. The two-layer construction helps to ensure superior clamping performance and temperature stability.

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