PLZ20C-G3/H

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PLZ20C-G3/H diodes belong to the one of the most commonly used diode type – single Zener diodes. They are one of the simplest diodes to use due to their low forward voltage drop and their fast switching capability. This makes them ideal for logic circuit applications such as fast switching rectifiers and protection circuits. In addition, they have no reverse recovery time, making them ideal for high-frequency switching applications.

The PLZ20C-G3/H series of diodes are designed for use in high-frequency switching applications and medical instrumentation markets. They feature low leakage current and reverse breakdown voltage of 5.5V and 10V. They also have a maximum continuous forward current rating of 50mA and an average power dissipation of 200mW. They are suitable for through-hole or surface mount applications.

The basic working principle for single Zener diodes is as follows. When a forward current is applied to the diode, it allows electrical current to flow in one direction only. In the forward bias mode, the diode acts as a closed switch and blocks any current and results in a low forward voltage drop. In the reverse bias mode, the Zener diode has a large voltage breakdown and no current is allowed to flow. This creates a very low reverse voltage drop.

The Zener breakdown voltage of PLZ20C-G3/H diodes is determined by the doping level, which is controlled by the manufacturer. This level determines the voltage rating of the diode. The rated breakdown voltage of the diode determines the maximum reverse voltage of the diode; this voltage will not change with varying currents or temperatures. The voltage rating must be greater than the applied reverse voltage to guarantee proper operation.

The use of PLZ20C-G3/H diodes can be found in various applications including:

• Power supplies
• Logic circuits
• Electronics circuits
• High frequency switching applications
• Medical instrumentation

When used in power supplies, the Zener diode is connected to the input supply and is held in a reverse breakdown condition by a resistor. This configures the diode as a voltage regulator. The diode will regulate the voltage across the diode and control the current though the diode. This configuration also serves to limit the input voltage to the power supply and prevent any overvoltage condition.

In logic circuits and electronics circuits, Zener diodes are used as voltage regulators and protection devices. Their low reverse breakdown voltage makes them ideal for applications in which very low voltages are required. Zener diodes can also be used to limit the voltage from overshoot or undershoot or to protect components from excessive voltages.

In medical instrumentation, the PLZ20C-G3/H diodes are widely used for protective and switching purposes. Their small size, low forward voltage drop and high reverse breakdown voltage makes them ideal for use in tightly controlled biological and medical systems. PLZ20C-G3/H diodes can be used for voltage regulation, protection, current limiting and signal conditioning.

In short, PLZ20C-G3/H diodes are one of the most versatile and widely used diodes available. Their small size, low forward voltage drop and high reverse breakdown voltage make them ideal for a variety of applications and markets. Their general application fields include: power supplies, logic circuits, electronics circuits, high frequency switching applications and medical instrumentation.

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