3EZ17D5/TR12

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The 3EZ17D5/TR12 diode is an example of a single Zener diode. It is an electronically protected single diode that provides a unique type of voltage regulation. This diode is typically used in setting up a fixed voltage regulator with a reverse breakdown voltage ranging from 11V to 17V. As such, it is popularly used in power supplies, clamping circuits, and voltage sensing circuits.

Application Field

The 3EZ17D5/TR12 diode can be used as a simple Zener diode in many different types of electrical systems. It is often tapped for reverse bias applications to regulate the voltage in circuits. Common uses of this component include setting reference levels, clipping malfunctioning signals, controlling energized inductors and clamps, and protecting against electrostatic discharge. It is also popularly employed for its high-precision voltage regulation in battery-operated devices, LCD drivers, digital logic systems, and RF circuits.

The 3EZ17D5/TR12 diode is one of the more reliable Zener diodes available. This makes it perfect for voltage regulation in applications where reliability and durability are paramount. In these situations, the tolerance ratings and surge protection capabilities of the component come into play. The component can handle high voltages and large current surges with minimal degradation, making it suitable for many motor control and telecommunications systems.

Working Principle

As a single Zener diode, this component features an anode and a cathode, with one semiconductor layer sitting between them. When reverse bias is applied to the diode, it begins allowing a steady current to pass through the structure and into the anode. This current represents the fixed voltage output of the component. When the applied voltage reaches a particular level, the excess energy is discharged, resulting in a stable output voltage.

Contrary to what many believe, the Zener diode does not create or modify the applied voltage beyond the breakdown point. It simply reduces the excess energy and allows just the right amount to pass through. This ensures that all current passing through the diode has a uniform and regulated output.

The amount of current flowing through the diode is regulated by the resistance of the semiconductor material. This resistance, in turn, is determined by the Zener’s breakdown voltage, which the 3EZ17D5/TR12 is rated at between 11V and 17V. The semiconductor material, which is typically made from silicon, acts like a resistor, limiting the amount of energy that can pass through the diode.

Conclusion

The 3EZ17D5/TR12 single Zener diode is one of the most reliable and versatile components on the market today. Its reverse bias application allows it to perform precise voltage regulation and current control, making it perfect for applications where reliability and durability are key. Its low on-state voltage capabilities, as well as its robust surge protection capabilities, make it an ideal choice for many motor control and telecommunications systems.

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