VDRS20W320BSE

TVS (Transient Voltage Suppressors) are an active component used in the protection of electronic circuits from damage due to overvoltage and Electrostatic Discharge (ESD). Varistors, MOVs (Metal Oxide Varistors), and thyristors are the main types of TVS components. This article will discuss the application field and working principle of VDRS20W320BSE, a Metal Oxide Varistor (MOV) from Bourns.

Metal Oxide Varistors (MOVs) are an effective form of surge protection devices which can be used in multiple instances of overvoltage and ESD. These devices are composed of zinc oxide elements along with other metallic oxides. This configuration provides low impedance protection during normal voltage operation (<500V) and strong suppression of voltage surge (>500V). The VDRS20W320BSE is a 20 Watt MOV suitable for a wide range of input/output voltages. It comes in an epoxy-free plastic case in order to avoid any contamination from humidity and air-borne particles. It has a voltage rating range of 320V AC and a maximum energy rating of 20 Watts.

The VDRS20W320BSE MOV is used in a variety of applications such as protecting telecommunication equipment, computer components, Notebooks, network interface cards, automotive electronics and industrial power supplies. It is particularly effective for protecting power supplies and sensitive electronics from transient voltage spikes. It is also capable of dissipating a large surge current in a short period of time and provides ESD protection for sensitive digital logic.

The working principle of the VDRS20W320BSE MOV is quite simple. When the input voltage exceeds the specified value, the zinc oxide film is activated, generating an electric arc. The generated arc causes thermal breakdown of the MOV elements; this causes an increase in resistance, dissipating a large amount of energy over a short period of time, thus suppressing the surge. Additionally, the MOV also provides additional protection against ESD up to a specified level.

In conclusion, the VDRS20W320BSE is a versatile Metal Oxide Varistor designed for wide range of input and output voltage applications. It is reliable, cost-effective and offers protection from transient voltage surges as well as ElectroStatic Discharge (ESD). This device has a wide range of applicationss in telecommunication equipments, computer components, automotive electronics and industrial power supplies.