VDRS20W680BSE

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TVS (transient voltage suppressor) devices, such as Varistors, MOVs (metal oxide varistors), and SCRs (silicon-controlled rectifiers) are used to reduce voltage spikes or transients and protect electrical circuits from damage caused by excessive voltage. A VDRS20W680BSE is an example of an MOV (metal oxide varistor) device that is designed to protect electronics from excessive transient voltages.The VDRS20W680BSE is an ultra-high-voltage transient suppressor of 0603 size. With 5% tolerance and 39pF capacitance, the VDRS20W680BSE can be used in wide range power supplies, audio equipments, and other applications that require high-energy transient protection. It can endure up to 20W of surge energy. Its maximum working voltage is 680V and it features a fast response time.The VDRS20W680BSE application field includes common power supplies, power converter units, communication equipment, and security systems, as well as a wide variety of consumer and industrial electronics.The working principle of the VDRS20W680BSE is based on a nonlinear behavior of the metal oxide varistor material that it is made of. When the voltage across the device exceeds its forward voltage, the MOV starts to conduct current and dissipate any excess energy. This reduces the voltage to its intended level. The MOV material can dissipate high-energy transients quickly, and suppress follow waves or secondary surges.In addition to dissipating energy, an MOV also provides shielding from electromagnetic interference (EMI). Its capacitance of 39pF ensures a low-inductance filter which helps reduce EMI. The VDRS20W680BSE can also help reduce power consumption as it can absorb much of the excess energy that otherwise would have caused the device or transistor it is protecting to heat up and consume more power than intended.The VDRS20W680BSE is designed for long-term use and stability in different applications. It provides up to 1000mA of peak surge current with voltage protection up to 680V. Its quick response time and high energy surge and surge leakage current ratings make it ideal for many types of applications and environments.Overall the VDRS20W680BSE is a popular MOV device that offers many advantages, including its ultra-high-voltage transient suppressor rating, high energy surge dissipation, EMI shielding, capacitance value, and surge leakage current ratings. These features make the VDRS20W680BSE a very effective solution for protecting electronics from high-voltage transients and providing a shield from EMI.

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