3EZ33D10E3/TR12

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3EZ33D10E3/TR12 application field and working principle

The 3EZ33D10E3/TR12 diode is a single Zener diode manufactured by UMC. It has a power dissipation rating of 350 mW and a peak reverse power dissipation rating of 1 W.

It is commonly used for the purpose of providing protection from static electricity, such as on a printed circuit board. It helps protect components from overvoltage and against excessive current. It also reduces voltage spikes, eliminating noise and crosstalk. Additionally, Zener diodes can provide an electrical signal reference to compensate for variations in input voltage levels.

Working principle

The working principle of the 3EZ33D10E3/TR12 is based on the Zener effect. It uses a silicon p-n junction with heavily doped zones that create a wide energy bandgap. When a voltage greater than the specified value is applied to the diode, the reverse current flow increases rapidly and the voltage drops to a defined value of approximately 10V.

Due to this effect, it is able to withstand reverse voltages up to 10V and maintain the output voltage at that value. This type of diode is called a voltage regulator because the output voltage will not rise above the breakdown point, no matter how much current is conducted in the forward direction.

The reverse current of a Zener diode is much higher than that of a normal diode when reverse biased. Therefore, it has a much larger reverse-biased breakdown voltage and a lower forward voltage drop. This makes it ideal for voltage regulation and protection applications.

Application

The 3EZ33D10E3/TR12 Zener diode can be used in a wide range of applications, such as voltage regulation, overvoltage protection, and voltage scrolling. It is also used in motor control circuits, static systems, microcontrollers, and PLCs.

Due to its high reliability, low operating current, and low forward voltage, it is also often used in communications equipment, such as PSTN telephone systems, modems, and switching equipment. Furthermore, it can be used in automotive instances, such as CPU to mini-motor drives, headlamp dimmers, and voltage regulators.

Conclusion

The 3EZ33D10E3/TR12 diode is a single Zener diode that is commonly used for the purpose of providing protection from static electricity, overvoltage, and excessive current. It is able to withstand reverse voltages up to 10V and maintains the output voltage at that level. It is highly reliable, low-operating current, and low-forward voltage, making it suitable for a wide range of applications.

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