SMBJ16A-M3/52

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TVS - Diodes are widely used in the fields of instrumentation, automation and energy technology due to their robustness, low leakage current and high reliability. The SMBJ16A-M3/52 is an integrated circuit (IC) that provides protection from transient overvoltage with fast protection response, and is widely used in those fields. This article explains the application fields and working principle of this device.

Application Fields

The SMBJ16A-M3/52 has a wide range of applications as it provides an effective way to protect sensitive electronic equipment from overvoltage transients. It can be used in Data Lines, Portable Instrumentations, Communications Equipment, Automotive Systems, Power Supplies, Computers, USB Interface, and many other systems.

This IC offers excellent protection from transient overvoltage, while satisfying the UL1449bis TVS Standard for transient voltage suppression in automotive systems. It can also be used in high transient voltage environments such as in lightning protection systems, and in situations where power surges of up to 500V(peak) may occur, such as in ground loop protection or surge protection applications.

Working Principle

The SMBJ16A-M3/52 is an integrated circuit (IC) that works based on the bipolar junction transistor (BJT). It is a three-terminal device consisting of two junction transistors in series and a diode in parallel to the series transistors, with the diode connected between the collector and the emitter of the top transistor.

When a voltage lower than the device’s breakdown voltage is applied to the cathode (C) and the anode (A), the transistors remain open as no current is flowing through them. When a voltage higher than the device\'s breakdown voltage is applied to the transistors, they start to conduct and current can flow through them. As the current flows and increases, the device’s breakdown voltage is reached and the transistors start to turn off, thus limiting the voltage. The diode helps to discharge the stored energy in the device.

This IC can absorb transients with fast response times, protecting sensitive electronics from high voltage transients. It can handle peak pulse currents up to 6.0A (8/20μs) and peak pulse power up to 350W (10/1000μs). The device provides an excellent level of protection from transient overvoltage in portable instruments, communication systems, automotive systems, and various other systems.

In conclusion, the SMBJ16A-M3/52 is an integrated circuit that provides effective protection from transient overvoltage with fast protection response. It can be used in a variety of applications, such as instrumentations, communications, automotive systems, power supplies, etc. Moreover, it works based on the bipolar junction transistor (BJT) and consists of two junction transistors in series and a diode in parallel. The device can absorb transients with fast response times, protecting sensitive electronics from high voltage transients.

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