VLZ2V4B-GS18

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A Zener diode is an electronic component which is used to regulate the voltage within an electronic circuit. Specifically, a single Zener diode like VLZ2V4B-GS18 is a semiconductor diode which allows current to flow in a single direction until the Zener breakdown voltage is reached. At this point, Zener breakdown occurs, allowing current to flow in the reverse direction as well.

The VLZ2V4B-GS18 diode is designed for use in items like telecom power supplies, ECL logic, vertical cavity surface emitting lasers, and RF applications. Additionally, these diodes can be used in a variety of voltage regulating, switching and low loss power applications.

The working principle of a single Zener diode is simple. When a current is passed through the Zener diode in the forward direction, very little voltage is dropped across the diode due to its low resistance. This current increases until it reaches the Zener breakdown voltage, at which point the voltage drops significantly across the diode. This causes the manufacturer-designated voltage to be realized and the reverse current is used to regulate the output of the circuit.

Once the desired output voltage is achieved, the current flow increases in the reverse direction, allowing it to be held at its output value. Ultimately, this action results in the voltage regulation of the circuit, ensuring the proper voltage levels are maintained. Without Zener diodes such as the VLZ2V4B-GS18, circuit regulators and power supplies would be unable to protect circuits against voltage spikes, and the circuit would be subject to unstable output voltages.

The VLZ2V4B-GS18 is a single Zener diode made by ON Semiconductor. It has a maximum operating temperature of +125 °C, a power dissipation of 350 mW, and a breakdown voltage of 4 V. Its feed-through capacitance is typically 9 pF and its reverse recovery time is 15 ns. This diode is suitable for use in high frequency switching applications, voltage regulation, and power supplies.

Overall, Zener diodes are an essential component for regulating voltage in both portable and desktop electronics applications. The VLZ2V4B-GS18 single Zener diode from ON Semiconductor is particularly useful for telecom power supplies, ECL logic, vertical cavity surface emitting lasers, RF applications, voltage regulation, and low loss power applications. Through its reverse current regulation scheme, the diode is able to prevent circuits from being damaged by too much voltage, resulting in a stable output voltage.

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