BZX55C20

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The BZX55C20 is a Zener diode which is used for voltage regulation applications. The device is a single diode which is capable of providing a static voltage reference across a wide range of operating conditions. The diode is capable of providing a constant voltage reference for applications such as power supply regulation and over-voltage protection. The device is also used as a voltage reference in voltage-sensing circuits.

The BZX55C20 is a Schottky diode with a maximum reverse current of 5 microamps and a forward voltage drop of 0.4 Volts. The device is rated for an operating temperature range of -55°C to +85°C which makes it suitable for use in a variety of environments. The diode is designed to provide a reliable static voltage reference over a wide temperature range.

The working principle of the BZX55C20 is based on the principle of Zener breakdown. The device is a single diode with a P-N junction that is reverse biased. As the voltage applied to the device increases, electrons are pushed into the P-region of the diode. This creates an electric field which opposes further current flow. As the reverse bias voltage continues to increase, the electric field reaches a critical value and the diode begins to break down, allowing current to flow.

The BZX55C20 provides a static voltage reference at its two pins, called the Anode and the Cathode. When the voltage applied to the device is at the breakdown voltage value, the voltage across the two pins remains constant. This static voltage is maintained even if the input voltage changes, making it an ideal solution for applications where a constant voltage is required.

The BZX55C20 is designed for use in a variety of applications including power supply regulation, over-voltage protection, voltage reference, and voltage sensing. By providing a reliable static voltage reference, the device can help to protect other components from exposure to excessive voltage. The device is also used in circuit designs where a constant voltage reference is required.

In power supply regulation applications, the BZX55C20 can be used to regulate the output voltage from the power supply. By providing a fixed voltage reference, the diode can hold the output voltage within a narrow range, ensuring that other components are not exposed to excessive voltages. The device is also used in over-voltage protection circuits, where it protects other components from being exposed to dangerous voltages.

The BZX55C20 can also be used as a voltage reference in voltage-sensing circuits. The device can provide a constant voltage reference which can be used by a controller to measure changes in input voltage. The device can also be used to provide a stable voltage reference in circuit designs that require a constant voltage reference.

The BZX55C20 is a single diode that provides a static voltage reference across a wide temperature range. The device is designed for use in a variety of applications including power supply regulation, over-voltage protection, voltage reference and voltage sensing. By providing a reliable static voltage reference, the device can help to protect other components from exposure to excessive voltage.

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