3EZ20D5-TP

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	7 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 15.2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	DO-204AC, DO-15, Axial
Supplier Device Package:	DO-15
Base Part Number:	3EZ20

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Introduction

The 3EZ20D5-TP is a single Zener diode that is commonly used for applications such as voltage regulation, overvoltage protection, or current limiting. This type of diode is characterized by its ability to regulate a current or voltage flow to a given level, usually that of a predetermined voltage level. In this article, we will discuss the applications of the 3EZ20D5-TP single Zener diode and its working principle.

Application Fields

The 3EZ20D5-TP single Zener diode has a wide range of applications, including regulating current, voltage, and power in various forms. The diode is used in power supplies, systems that require voltage regulation, and in circuits where low-level critical signals exist. It is also used in voltage converters and voltage level shifters, which can be used to convert any input voltage level to a specific output voltage. Moreover, Zener diodes are commonly used for overvoltage protection. This is done by connecting the 3EZ20D5-TP diode in series with a resistor and a capacitor. If a certain voltage level is crossed, then the Zener diode will start to conduct current and thus limit this voltage to a certain level. This application of the diode is particularly helpful in preventing damage to components that have a limited tolerance to higher voltages. The 3EZ20D5-TP can also be used in circuits with low-level critical signals. By connecting the diode in parallel with the signal, the diode can gently clip any noise spikes and help improve the quality of the signal. This can be used in data communication and high precision measurement applications.

Working Principle

Like all other diodes, the 3EZ20D5-TP single Zener diode is composed of two layers of semiconductor material, each of which is composed of different elements such as arsenic, phosphorus, boron, etc. One of the layers has an excess of electrons, which, when an electric field is applied, will cause the electrons to be pushed into the other layer. This flow of electrons between the layers is the distinguishing feature of a diode. In the case of the 3EZ20D5-TP, when a certain voltage level is crossed, the diode will become forward biased, meaning that a significant amount of current will flow through the diode and create an electric field across the junction. This electric field will then cause electrons to be pushed from the p-side of the diode to the n-side of the diode. The Zener voltage, Vz, of the diode will be regulated by the temperature of the diode, which can be described by the following equation:Vz = V0 – q*TWhere Vz being the Zener voltage, V0 being a constant, q being a constant related to the temperature coefficient of the diode, and T being the temperature.

Conclusion

The 3EZ20D5-TP single Zener diode is an essential component for many applications. Its ability to regulate and limit currents and voltages makes it ideal for use in voltage converters, voltage level shifters, and overvoltage protection circuits. Its working principle of using an electric field to guide electrons through the diode is fundamental to the basic operations of all diode types.

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