V18ZA1PX2855

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TVS - Varistors, MOVs (Transient Voltage Suppression, Metal Oxide Varistors) are components that are used to protect electronics from voltage transients, also known as spikes. The V18ZA1PX285 is a common type of TVS, designed to protect two lines from transients up to 60 V.

Varistors are non-linear resistors composed of two or more layers of metal oxides which are connected in parallel. When a transient voltage is applied to the terminals of a varistor, a current flows through it, and the resistance of the varistor decreases dramatically. This current will absorb most of the energy of the incoming voltage spike or transient, thus protecting the connected device from the spike.

MOVs are similar to varistors, but instead of two layers of metal oxides, they often have three layers. They are also able to handle higher voltage transients. The V18ZA1PX285 is an MOV, able to protect two lines up to 60 V.

The metal oxide layers of the V18ZA1PX285 are composed of Zinc Oxide, Lead, and Aluminum. The Lead, or Pb, is used as a dopant and added to the Zinc Oxide to increase its conductivity, while the Aluminum is used to increase the capacitance of the device. These layers are sandwiched between two electrodes, and are held together with a cathode ring. When a voltage transient appears, the current flows through the cathode ring, the metal oxide layers, and finally out through the electrodes.

The V18ZA1PX285 has two very useful features: it can absorb a large amount of energy in a short period of time, and it has a very low off-state leakage current. These features give it a wide range of applications, from protecting computers, domestic appliances, cell phones, and other electronic equipment from voltage transients, to protecting electric motors from power surges.

The V18ZA1PX285 also has a fast response time, which means it can respond to a voltage transient in as little as 10 nanoseconds. This is important as it can help to prevent the electronic device from sustaining any damage due to the transient. The device can also handle large surges of up to 50V at an overload current of 500mA.

In conclusion, the V18ZA1PX285 is a popular type of MOV, which is used in many applications to protect electronic devices from voltage transients. It has a low off-state leakage current, a fast response time, and is capable of handling large surges. This makes it a great choice for protecting electronics from voltage transients.

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