ZM4728A-GS18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.31V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	100µA @ 1V
Operating Temperature:	175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF (Glass)
Supplier Device Package:	DO-213AB

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Introduction

ZM4728A-GS18 is a type of single Zener diode. It has a maximum breakdown voltage of 18 volts, with a maximum power of 500 mW at 25°C. ZM4728A-GS18 is manufactured by Diodes Incorporated and is typically used in a variety of applications such as voltage regulation, over-voltage protection and signal clamping. This article looks at the application fields and working principle of the ZM4728A-GS18.

Application Fields

ZM4728A-GS18 is used for a variety of applications, such as voltage regulation, over-voltage protection, signal and voltage clamping, temperature sensing and more. In terms of voltage regulation, the ZM4728A-GS18 can be used to provide a stable voltage level and prevent any over-voltage conditions. This is especially useful in sensitive electronic equipment and devices where over-voltage conditions may damage or affect the operation.The ZM4728A-GS18 also has applications in over-voltage protection. When used in line with other components, it can protect electronic devices from any potential over-voltage, thus preventing damage. In addition, the ZM4728A-GS18 can also be used for signal and voltage clamping. By quickly clamping a signal or voltage above a certain level, the diode can help protect other components from damage due to any sudden voltage changes.The ZM4728A-GS18 is also commonly used for temperature sensing. The Zener diode has a negative temperature coefficient, which means that its reverse breakdown voltage decreases with increasing temperature. This makes it an ideal choice for temperature sensing applications.

Working Principle

The working principle of the ZM4728A-GS18 is based on the breakdown of a PN junction. A PN junction is an arrangement of two different types of semiconductor materials, namely, a P-type material and an N-type material. The junction is formed between these two materials, and it has an associated depletion region. This depletion region contains electric charge carriers that control the flow of electric current through the junction.When the voltage across the PN junction reaches the breakdown voltage level, the depletion region becomes so thin that the electric field is strong enough to cause electrons to break down into the P-type material. This breakdown of electrons provides for a large amount of current and voltage, allowing for a controlled current flow.

Conclusion

The ZM4728A-GS18 is a single Zener diode with a maximum breakdown voltage of 18 volts and a maximum power of 500 mW at 25°C. This diode has numerous applications, including voltage regulation, over-voltage protection, signal and voltage clamping and temperature sensing. Its working principle is based on the breakdown of a PN junction, which results in a large amount of current and voltage when the applied voltage reaches the breakdown voltage.

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