B72520V0400K062

TVS - Varistors, MOVs

The B72520V0400K062 is a Varistor, MOV (metal oxide varistor) manufactured by EPCOS AG, a TDK Group Company. This device is well suited for applications requiring over-voltage protection up to a voltage of 750 V peak with high surge current requirements. It is also used in automotive, consumer electronics, and communications applications.

A Varistor, MOV is a specialized type of electrical resistor designed for protection from overvoltage surges in power distribution systems. It works through the control of the electric field across its electrodes. During periods of overvoltage, it acts as a two-terminal nonlinear resistor by forming a "back-to-back" diode structure within the device. As a result, the voltage across the terminals is limited to a safe level.

To operate, the Varistor, MOV requires a voltage above its rated voltage (V_rated). At a greater voltage, it will become forward biased and act as an ohmic element carrying current. As the voltage reaches its V_rated, a large nonlinear current begins to flow through the device and the voltage across the terminals will remain constant. To ensure optimum protection, the rated voltage for a MOV is typically chosen to be two-thirds of the expected normal operating voltage.

The B72520V0400K062 is designed to protect equipment from line interferences of up to 750 V with surge currents up to 4 kA. The device is available in the 20 mm round, TNE series with an operating temperature range of -40°C to +85°C. It is also UL recognized and complies with IEC standards.

In general, a Varistor, MOV can be used in such power system applications as fuse protection, lightening and surge protection, and EMI/RFI protection. It is also available in a variety of applications, ranging from low-voltage sensing and control systems to high voltage power distribution systems. Manufacturers of these devices offer them in various values and ratings to meet the specific requirements of customers.

In conclusion, the B72520V0400K062 Varistor, MOV offers protection up to 750 V peak with high surge current requirements. This device is used in various applications, including automotive, consumer electronics, and communications. Its low cost and easy installation make it a compatible choice for both low- and high-voltage applications requiring a Varistor, MOV.