FXS03

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Diodes are often used as current-controlled voltage sources. The Zener diode, also known as a voltage regulator, has a “breakdown voltage” at which it becomes a predictable non-linear resistor. As current through a Zener diode increases, so does its voltage drop. When the voltage across the Zener diode reaches the breakdown voltage, the diode acts as a limited current source, allowing some current to “leak” into the device, thus creating a voltage limit. The FXS03 is a single Zener diode suitable for use in both high current and medium current applications.

The FXS03 is a single 30V Zener diode with breakdown voltage of 6V. It has a maximum reverse voltage of ±200V, a total forward current of 1.0A and a forward power dissipation of 0.05W. It is available in a small form factor, which makes it suitable for use in a wide range of applications.

The main application of the FXS03 is as a simple voltage regulator in both high current and medium current applications. It can be used to convert higher voltages into a manageable range for powering electronics. For example, the FXS03 can be used to convert high-voltage AC mains power into the direct current (DC) power required by the circuit. The Zener diode can also be used in applications such as voltage references, voltage protection, voltage dividers, and reverse blocking.

The working principle of the FXS03 is straightforward. When the diode\'s breakdown voltage (Vz) is reached, the diode turns on, drawing current until the voltage reaches the desired level. As the voltage across the diode increases, so does the current, thereby limiting the voltage across the diode to the Vz. This creates a crude voltage regulator that limits the voltage provided to the circuit.

In summary, the FXS03 is a single Zener diode suitable for use in high current and medium current applications. It can be used as a simple voltage regulator or for voltage protection, voltage references, voltage dividers, or reverse blocking. The diode works by limiting the voltage provided to the circuit by drawing current when the breakdown voltage (Vz) is reached. This allows the circuit to rely on a more stable voltage source, thus improving its performance and reliability.

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