ZM4764A-GS08 Discrete Semiconductor Products

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Diodes - Zener - Single - ZM4764A-GS08 Application Field and Working Principle

The ZM4764A-GS08 is a diode specifically designed for provide protection against transient voltage surges such as power surges, electric transients, and more. It is a Zener diode type and is part of the 5 Volt technology family, providing an ideal protection solution for low voltage applications. This diode is capable of withstanding a continuous load current up to 1A while clamping the on-state voltage to 5.6V (at 1A).

Application Field

The ZM4764A-GS08 is suitable for use in a wide range of applications including cellular phone adapters, DC/DC converters, and portable computing devices, as well as industrial and computer applications. Since the ZM4764A-GS08 has a maximum operating temperature of 105°C, it is ideal for applications where power dissipation, high speed switching, and low temperature de-rating is required. This diode has a wide operational temperature range from -55°C to +105°C.

In cellular phone applications, the ZM4764A-GS08 can be used to protect against the transient voltage spikes that can occur during phone operations such as rapid switching between active and standby modes. In DC/DC converters, this diode can be used as a transient voltage protection device, protecting the device from destructive surges and transients. Additionally, the ZM4764A-GS08 can be used in portable computing devices to protect against overvoltage due to rapid switching between battery pack and AC power sources.

Working Principle

The ZM4764A-GS08 is a Zener diode, which means that it acts as a voltage regulator. This diode has two junctions: a P-type and a N-type. The P-type junction is connected to the positive phases of a circuit or system, while the N-type junction is connected to the negative phases. The diode acts as a switch, allowing current to flow in one direction only. When the voltage differential between the two junctions exceeds a certain threshold, the N-type junction will begin to conduct, allowing the current to pass through and the voltage to be regulated.

The ZM4764A-GS08 has a breakdown voltage of 5.6V at 1A load current. This means that the diode will remain off until the voltage differential reaches at least 5.6V, at which point the diode will switch on and clamp the voltage down to 5.6V. This voltage-clamping action protects the circuit or system from destructive voltage spikes and surges.

In addition to its voltage-clamping action, the ZM4764A-GS08 also has a low power dissipation feature. This feature allows the diode to dissipate only a small amount of power, meaning that the diode will not overheat in case of large transients or high current flows.

The working of the ZM4764A-GS08 is simple yet effective, making it an ideal protection solution for a wide range of low voltage applications.

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