SMBJ17A/54

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TVS (transient voltage suppressors) diodes are devices designed to protect sensitive electronic circuits from the indirect effects of transient electrical events such as electrostatic discharges, voltage surges, or even lightning strikes. A SMBJ17A/54 is an example of a TVS diode, and its application field and working principle are discussed below. The SMBJ17A/54 TVS Diode is a specially-designed component to protect sensitive electronics from external electrical shock. It is capable of enduring drops in voltage in excess of 45 Volts, and can operate in multiple positions and situations. The SMBJ17A/54 is constructed using a plastic package and is typically operated in the reverse blocking direction (overvoltage protection).The SMBJ17A/54 is commonly used in consumer electronics such as TVs, computers, gaming devices, and other connected devices. It is also used in industrial application areas such as automobile control systems, electrical lines, and distributed power systems. The SMBJ17A/54 is capable of protecting against transient voltage surges up to 175V, making it suitable for use in medium-voltage applications. The SMBJ17A/54 works by withstanding a static overvoltage applied between its two electrodes, then diverting the excessive current through an external ground connection. This process involves an electrostatic discharge (ESD), thus creating a protective force field between the two connections. As a result, the SMBJ17A/54 can attenuate or limit the surge current, thus protecting the connected components from damage.The SMBJ17A/54 is also robust enough to handle a fast-rise time surge, reaching its peak in less than one-thousandth of a second. The peak power of a transient surge can reach hundreds of times the normal power, so this fast response time is essential for reliable protection. When the surge current exceeds a set level, the TVS Diode will begin to clamp the voltage, thus maintaining the rest of the circuit by blocking further surge voltage. The SMBJ17A/54 is designed with an extra wide standoff distance which gives it an advantage when it comes to surface mount mounting. It also has a low inductance, which helps speed up the switching process, and a low forward voltage, allowing it to conduct more current when required. In conclusion, the SMBJ17A/54 is a type of transient voltage suppressor diode, widely used in consumer electronics and industrial applications. It is able to protect circuit components against voltage surges up to 175V, and also has a fast response time, meaning it can safely protect against transient electrical events. The SMBJ17A/54 can handle static overvoltage without failure, and its wide standoff distance and low inductance make it well-suited for surface mount mounting.

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