SZESD7351P2T5G Circuit Protection

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TVS-Diodes are commonly used in a wide range of applications. They are used in military, automotive, aircraft, computing, and other industries where a high level of protection is required from over-voltage transients. The SZESD7351P2T5G is an example of a TVS-Diode that is often used in automotive and industrial settings. In this article we will discuss the application field and working principle of this device in detail.

The SZESD7351P2T5G is a fast-acting bidirectional transient voltage suppressor diode. It is designed to protect sensitive equipment from transient and overvoltage events. It is designed specifically for automotive and industrial applications where both high speed response and low capacitance are required. The device has a surge capability of up to 40A and is able to withstand up to 18V in reverse polarity. It also has a reverse standoff feature that helps to protect the diode itself from damage due to reverse polarity.

The working principle of the SZESD7351P2T5G is based on a thermal runway mechanism. When a transient voltage is applied, the device conducts a large amount of current which heats up the PNA (positive temperature coefficient anode) and causes it to expand. This causes the PNA to move forward and open the flow path between the anode and cathode. This in turn causes the current to be diverted away from the sensitive components and thus reducing the damage caused by the transient voltage. This device also features an integrated clamping circuit which helps to reduce the noise and ripple on the power supply line.

The application field of the SZESD7351P2T5G includes automotive, industrial, electrical/electronic, pulse, and strong surge protection applications. It is used in many automotive applications such as power supply, communication, navigation, and ignition systems. It is also used in industrial applications such as voltage control in robots, high speed automation, and for door, window, and alarm control systems. In addition, it can also be used for surge protection in electricity distribution networks and for protecting voltage sensitive components in medical electronics and other sensitive products.

In conclusion, the SZESD7351P2T5G is an ideal choice for automotive and industrial applications requiring fast-acting protection from over-voltage transients. It has a surge capability of up to 40A and a reverse standoff feature that helps to protect the diode itself from damage due to reverse polarity. It also has an integrated clamping circuit that helps to reduce the noise and ripple on the power supply line. It is used in a wide range of applications and its working principle based on a thermal runway mechanism provides excellent protection from over-voltage transients.

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