1N4688UR-1

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Diodes - Zener - Single

The 1N4688UR-1 is a single, zener diode. It is an avalanche diode, providing a wide range of breakdown voltages between 28 and 75 volts, with power ratings from 150mW up to 500mW. This makes it suitable for use in high power applications including spacecraft, power supplies, and many other applications.

Application Field

The 1N4688UR-1 is commonly used for over-voltage protection and voltage regulation in many industries. It is suitable for a vast range of applications, including automotive, consumer electronics, telecommunications, medical, military, and power control.

Specifically, the 1N4688UR-1 is an ideal choice for application in a power supply, especially those supplying currents greater than 1A. It is also used in voltage multipliers and voltage-sensing circuits. As a zener diode, it is used in voltage regulation circuits, as well as DC-DC converters and other low-noise switching regulators.

In automotive applications, the 1N4688UR-1 is used in battery charging, stabilizing, and overvoltage protection. In consumer electronics, it is suitable for remote control circuits and voltage-sensitive circuits. It is also used in cell phone circuit boards for overvoltage protection, as well as for over-current protection applications.

Working Principle

The 1N4688UR-1 is an avalanche diode, meaning that its anode and cathode are connected in a way that allows an avalanche breakdown of the current. This breakdown occurs when the applied voltage exceeds a certain value, which is called the “breakdown voltage”. This breakdown voltage is usually closely tied to the diode’s manufacturing process and is usually consistent within a range of operating temperatures.

When the applied voltage exceeds the breakdown voltage, the current passing through the diode increases exponentially. This means that even a small increase in voltage will cause a large increase in current. The amount of current that the diode can handle without damage is known as the “maximum junction voltage”.

Avalanche diodes are useful because they provide superior overvoltage protection and consistency, even in applications where the operating temperature is high. The 1N4688UR-1 is a suitable choice for zener diode voltage regulation applications, as it provides a wide range of break-down voltages and high power ratings.

In summary, the 1N4688UR-1 is a single, zener diode that is suitable for use in many different applications. It is an avalanche diode with a wide range of breakdown voltages and reliable performance, even at high temperatures. This makes it an ideal choice for over-voltage protection, voltage regulation and power control.

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