ERZ-VF2M680 Circuit Protection

TVS - Varistors, MOVs, are the most common form of Transient Voltage Suppressors (TVS). These devices are used to protect against transient voltage surges, which can be caused by lightning, power line surges and other sources of high voltage, and can be used in virtually any electronic system that is subject to high power levels or transient current events.

The ERZ-VF2M680 is a metal-oxide varistor that can be used as a TVS in a variety of applications. It is a high voltage, non-polar device that utilizes two zinc oxide plates connected in parallel. It has an operating range of -1 to +500 volts, a maximum pulse current of 5kA, a maximum clamping voltage of 680 volts and a capacitance of about 5 to 10 pF. The device is encapsulated in a two-inch plastic enclosure with a lead provided for electrical connection.

The ERZ-VF2M680 can be used in a variety of applications, including in power supplies, motor controls, inverter-type supplies and UPS applications. It is also used in telecommunications and data transmission equipment, in protection circuits, and in sensitive electronic circuits such as computers and peripherals.

The working principle of the ERZ-VF2M680 is based on the concept of "energy absorption", which is when the device, upon sensing an overvoltage, acts to absorb the energy of the voltage surge and dissipate it as heat. The two plates of the zinc oxide are connected in parallel, allowing for a low-impedance path for the high-voltage surge. As the surge is dissipated, the device is slowly brought back to its rated value.

The ERZ-VF2M680 is a very reliable and efficient device for use in TVS applications. It is robust, has a low capacitance and can handle high transient currents. It also has a low internal resistance and is designed to self-restore, which helps extend its life. In addition, it is able to operate in temperatures up to 125°C. As a result, it can be used in a wide range of applications and is ideal for use in extremely hostile environments.