V18MLE0603LT

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TVS - Varistors, MOVs, are special electronic components designed to provide protection of sensitive electronic devices from transient overvoltage disturbances. The V18MLE0603LT is one such component and is widely used for applications such as line protection, automotive, and military. It is a low capacitance bi-directional device with a low leakage current.

The V18MLE0603LT is a monolithic component with multiple voltage sensitive regions. The sensitive regions act as electrical fuses, which can quickly change the resistance of the device to clamp or limit sudden increases in voltage. This helps protect vulnerable components, such as integrated circuits, from overvoltage damage.

The working principle of the V18MLE0603LT is based on impedance, which represents the opposition to the flow of electrical current. The impedance of the V18MLE0603LT is dependent on the voltage across it and can change from very low to very high values, depending on the level of the voltage. When the voltage across the device reaches the breakdown voltage, or the clamping voltage, the impedance changes drastically.

The V18MLE0603LT has two different zones of protection. The first zone of protection is the undershoot zone in which the breakdown voltage of the device is higher than the applied voltage, and therefore, the device remains in an off or floating state. The second zone is the overshoot zone, where the breakdown voltage is lower than the applied voltage, and the device responds by heavily increasing its impedance to clamp the voltage.

In summary, the V18MLE0603LT is widely used for applications that require transient overvoltage protection from drastic voltage fluctuations. It has a low capacitance bi-directional design with two distinct zones of protection. It works based on the impedance of the device, which drastically changes when the breakdown voltage is reached, thereby protecting vulnerable components.

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