B72590E0170S170

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TVS - Varistors, MOVs are commonly used in power systems. They are voltage-dependent resistors (VDRs) that provide instantaneous “crowbar” short-circuiting current during high transient surge conditions which help in suppression of overvoltage events. MOVs and varistors are the most popular transient voltage protection devices, and their applications are wide ranging.B72590E0170S170, a product from EPCOS, is a 5 mm x 10 mm rectangular Polymer ESD-Protected Varistor. It is a ESD Varistor rated for 470 VAC, with 1700 pF capacitance. The device is designed for maximum contact discharge (original), as specified in IEC 61000-4-2, edition 3.0. The device also has the ability to self-extinguish after it has encountered transient surge.The principle working of the B72590E0170S170 device can be explained by its capacitor-like behavior. The device is composed of several layers of semi-conductive material (for ESD protection) coated with metal electrodes. When the voltage applied to the device exceeds its breakdown voltage, current flows between the electrodes, discharging the varistor in the way of a capacitor. The electrodes then switch back to their low-resistance state and the current stops, thus limiting the surge of electricity in the circuit.The B72590E0170S170 varistor is primarily used for ESD protection, isolation and surge protection for automotive and industrial control systems. Typical applications include power supplies for products such as laptops, modems, routers, security cameras, microwave ovens, power tools, and other electrical and electronic equipment.The B72590E0170S170, with its reliable performance characteristics, is also suited for general purpose overvoltage protection for telecommunications equipment. The device offers low insertion loss and excellent ESD protection up to 70kV contact discharge. It also has superior tolerances to the order of up to 10%, which is greatly beneficial for high surge events.B72590E0170S170 ESD Varistor can handle both AC and DC surge, as well as pulse waveforms. The device can operate with a variety of dielectric materials such as polyethylene, PVC, and ITO. It is also compatible with other varistor technologies, including MOVs.One of the main advantages of using B72590E0170S170 varistors is that they offer superior performance over other devices such as MOVs. While MOVs require the use of external components to restrain their range of operation, the B72590E0170S170 does not need any additional components for its protection. The device offers superior repeatability and dependability, and can withstand a wide range of surge events.In conclusion, the EPCOS B72590E0170S170 varistor is an excellent choice for sensitive electronic apparatus as well as power systems applications that may encounter high transient surge conditions. Its wide range of features make it an ideal choice for applications such as power supplies, routers, and other telecom equipment. Its ability to self-extinguish and low insertion loss make it an ideal solution for ESD protection and surge protection in general.

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