NZX20C,133 Discrete Semiconductor Products

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Diodes are an essential component found in virtually every electrical device and piece of equipment, and the Zener type is especially useful for power regulation, surge protection and similar applications. NZX20C,133 is a single Zener diode of type “NZX” that is characterized by low power, low voltage, and small size. In this article, we will look at the application field and working principle of NZX20C,133.

NZX20C,133 is designed for use in many applications, including voltage regulation, clamping voltage protection, and surge suppression. It is suitable for any circuit requiring a constant voltage source that has a low power rating. In particular, this type of diode is frequently used in equipment like power supplies, digital and analog circuits, and electric appliance control systems. The Zener breakdown voltage is 4.3V and the maximum power dissipation is 200mW. The maximum reverse current is 5mA and the maximum forward current is 10mA.

The working principle of NZX20C,133 diode is the pn junction diode. In this type of diode, two semiconductor materials, such as silicon and germanium, are joined to form a junction. This junction behaves like a leaky capacitor, allowing current to pass in one direction only. When the diode is in forward bias, a small amount of current is allowed to flow through the diode, and this current is proportional to the voltage applied to the diode. In reverse bias however, the diode is blocked and no current will flow through.

When the voltage across the diode exceeds the Zener voltage, the diode begins to breakdown and a large amount of current will flow through the diode. This Zener current is modulated by the resistance of the circuit connected to the Zener diode. This allows the NZX20C,133 to be used as a voltage regulator, where the output voltage is regulated by controlling the current through the diode.

Besides voltage regulation, NZX20C,133 can also be used for clamping voltage protection and surge suppression. In these applications, the diode is connected across the input or output of the circuit, and the breakdown voltage of the diode is set to be slightly higher than the maximum expected voltage. When the voltage across the diode exceeds the Zener voltage, the diode will conduct and clamp the voltage, preventing damage to the circuit. Similarly, a Zener diode can also be used to protect sensitive electronic circuits from power surges.

In summary, NZX20C,133 is a single Zener diode used extensively in applications that require low power, low voltage, and small size. In particular, this diode is commonly used for voltage regulation, clamping voltage protection, and surge suppression. Its working principle is based on the pn junction diode, where a steady current is allowed to flow through the diode when voltage is applied, and the Zener effect is used to modulate the current and provide voltage regulation.

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