PLZ18B-G3/H

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PLZ18B-G3/H is a zener diode belonging to the Single category. It has a voltage rating of 18V, and its power rating is 0.5W. It is designed to protect sensitive components from high voltage surges and it can handle a surge current of up to 10A.

The PLZ18B-G3/H is typically used in consumer electronics, such as TVs and audio systems. It is also used to protect automotive electronics and to provide over-voltage protection in industrial systems. It is a low-cost, reliable solution for protecting sensitive components from voltage surge.

The working principle of a zener diode is simple. When a higher voltage than its zener voltage is applied across it, it starts to conduct current and dissipates the excess voltage. When the voltage drops below the zener voltage, the diode no longer conducts current. This ensures that the protected device receives the same steady voltage without any fluctuations.

The PLZ18B-G3/H zener diode is a unidirectional device, meaning that current can only flow through it in one direction. It consists of two layers of semiconductor material separated by a layer of insulation. When a voltage is applied to the diode, electrons move through the insulation layer, creating a current.

The diode also has two terminals - an anode and cathode - which are connected to the positive and negative sides of the voltage source. The anode is the positive terminal and the cathode is the negative terminal. When the positive side of the voltage source is connected to the anode, and the negative side is connected to the cathode, the diode is said to be in the forward biased configuration, meaning that the diode conducts current.

When the reverse bias configuration is used, the diode does not conduct current, but the zener voltage will still be present. When the applied voltage exceeds the zener voltage, the diode conducts current and dissipates the excess voltage, protecting the connected device from higher voltage surges.

In conclusion, the PLZ18B-G3/H is a zener diode belonging to the Single category. It is used for the protection of sensitive components from overvoltage and has a zener voltage of 18V and a power rating of 0.5W. Its simple working principle makes it a low-cost and reliable solution for protecting sensitive components from voltage surges.

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