SMBJ200A-H

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The SMBJ200A-H is a transil diode that can be used in applications such as lighting, motor control, automotive, and consumer electronics. It is mainly used for transient voltage surge protection due to its high power rating, low clamping voltage, and high surge current capability. In this article, we will discuss the applications and working principle of this diode.

The SMBJ200A-H can be used in lighting applications due to its features such as high power rating, low clamping voltage, and fast response time. This diode is capable of providing surge protection against transients caused by lightning and other overvoltage events. It is commonly used in high power LED lighting systems to protect them from overvoltage and transient surges. It can also be used in motor control applications due to its low voltage drop and reverse leakage current, which is essential for protecting sensitive electronic components.

In automotive applications, the SMBJ200A-H can be used to protect against transient surges caused by static electricity. It can provide sufficient energy to absorb damaging voltage spikes, ensuring that the vehicle\'s electrical system remains safe. In consumer electronics, this diode is used to protect sensitive components from overvoltage and transient surges. It can effectively limit the voltage surge across a circuit and prevent damage to the components.

The working principle of the SMBJ200A-H can be explained as follows: when a positive voltage surge is applied to it, a controlled cascade reaction occurs within the diode to quickly absorb the surge energy via a combination ofavalanching and energy absorption. The avalanche effect occurs when electrons generated within the diode combine with fixed ions in a chain reaction, which quickly dissipates the surge energy. Meanwhile, the energy absorption process occurs because the avalanche reaction creates more free electrons that can be directed towards the P-side of the diode, resulting in a voltage drop across the device.

In conclusion, the SMBJ200A-H is a transil diode that can be used in applications such as lighting, motor control, automotive, and consumer electronics. It has high power rating, low clamping voltage, and fast response time. It is also able to protect sensitive electronic components from overvoltage and transient surges. The working principle of this diode is based on the combination of an avalanche effect and energy absorption to quickly dissipate intense surge energy.

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