GDZ4V7B-HG3-08

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Diodes - Zener - Single

GDZ4V7B-HG3-08 is a type of single Zener diodes available in both axial and surface mount types. Zener diodes are known for their ability to regulate voltages, or “clamp” them at a certain level in order to prevent damage. The GDZ4V7B-HG3-08 is rated at 4.7V and 8W with a maximum power surge rating of 100W.

These diodes are popularly used in power supplies. Their most important function is to protect sensitive loads from high voltages. In a power supply, it is connected between the power line and the load so that, if a voltage spike above the rated voltage of the diode occurs, the diode will be automatically switched on, conducting the current away from the vulnerable load. In this way, the diode acts as a protective measure by clipping off the unwanted voltages.

The GDZ4V7B-HG3-08 can also be used to limit the voltage applied to a device or circuit. It is often connected across the power supply terminals, so it can only conduct under specific conditions. In this way, it is able to keep the voltage of the device or circuit within a predetermined voltage range, preventing it from exceeding safe levels.

Apart from its usage in power supplies, the GDZ4V7B-HG3-08 can be used to regulate the output voltage of a buck converter. It is connected in series with the load and the output of the buck converter. When the output voltage exceeds the Zener voltage, the Zener diode conducts, blocking the current and clamps the maximum voltage at the output node of the converter.

The GDZ4V7B-HG3-08 can also be used in LED lighting applications. It is connected in series with the LED and power supply, in order to limit the voltage applied to the LED. This prevents the LED from operating at too high a voltage and being damaged.

Overall, the GDZ4V7B-HG3-08 is a versatile diode which is used to protect sensitive loads against high voltages, limit the voltage applied to a device or circuit, and regulate the output voltage of a buck converter. It can also be used in LED lighting to prevent overvoltage damage.

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