JANTX1N4975DUS

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Diodes are semiconductor devices that allow electrical current to flow in one direction and restrict flow in the opposite direction. The types of diodes are primarily differentiated by their main functions, which have different uses in various circuit applications. One such type is the Zener diode, which provides the dual function of voltage regulation and providing a specified voltage reference. Single Zener diodes are diodes with one junction and are often used as voltage regulators in AC adapters, voltage references and voltage multipliers.The JANTX1N4975DUS is an example of a single Zener diode. This diode has a total power dissipation of 1 Watt and an operating temperature range from -65 to +175. It has a breakdown voltage from 5.1 to 6.8V, a reverse current of 100nA and a leakage current of 1.2uA.The primary application of JANTX1N4975DUS is to provide a regulated voltage output to circuits, control the output current and protect against over-voltage and over-current conditions in the circuit. Due to its low power dissipation, high temperature range and low leakage current, this device is often used in AC adapters, voltage references and voltage multipliers, as well as in other applications that require low Zener diode power dissipation and a high temperature range.The Zener diode works on the principle of avalanche breakdown. This breakdown occurs when the applied voltage across the diode reaches a level of reverse breakdown voltage. At this point, the strong electric field with the reverse bias, distorts the crystal structure of the diode in such a way that the electrons and holes, which normally cancel out each other\'s charge, create a large current that flows through the diode. This current, also known as the Zener current, is limited by the resistance of the diode and the applied voltage.The Zener diode also works as a voltage regulator as it functions as a controlled diode and limits the output voltage to a certain level when the input voltage to it is higher than the reverse breakdown voltage. This occurs due to the Zener effect, which occurs when the electron-hole pairs spontaneously generate along the junction, and these in turn prevent the output voltage from exceeding the threshold.To summarise, the JANTX1N4975DUS is a single Zener diode used for voltage regulation and providing voltage reference in various applications such as AC adapters, voltage references and voltage multipliers. It works by limiting the output voltage to a certain level when the input voltage is higher than the reverse breakdown voltage through avalanche breakdown and Zener effect. This ensures proper voltage reference and current protection, making it an ideal choice for such applications.

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