BZG04-10-HM3-18

Series:	Automotive, AEC-Q101, BZG04-M
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	12V
Tolerance:	--
Power - Max:	1.25W
Current - Reverse Leakage @ Vr:	5µA @ 10V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 500mA
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)

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Introduction

A BZG04-10-HM3-18 is a single Zener diode designed to regulate voltage across a circuit. In simple terms, it prevents the voltage from increasing or decreasing to a dangerous level by controlling the current, ensuring safe operation of a device or system. The BZG04-10-HM3-18 is typically used in industrial electronics, automotive applications, and other general-purpose electronics applications.

Construction

The construction of a single Zener diode involves a diode junction made of doped silicon. Doping is a process in which elements such as boron, phosphorous, arsenic, and antimony are added to silicon wafers to provide different characteristics. The silicon wafers typically contain regions of P (positvely) and N (negatively) type material. A junction is created when a P-type and N-type material are placed next to each other and are connected to two metal contact points. This forms the diode’s N- and P-type layers. The contact points are then connected to external circuit boards within the device. This allows electrical current to flow through the BZG04-10-HM3-18. Additionally, a Zener diode may also be coated with a substance known as a Zener Breakdown Layer. This layer helps prevent a voltage overcurrent which could potentially damage the device.

Working Principles

A BZG04-10-HM3-18 operates on the principle of reverse breakdown. This is the process by which a diode is able to regulate the amount of current flowing through a device. When the current increases, the Zener diode’s Zener Breakdown Layer begins to conduct, allowing a portion of the current to flow through and reach the P-N junction. This process prevents the voltage from increasing beyond the Zener Breakdown Layer’s limit.Conversely, when the current decreases, the Zener Breakdown Layer increases its resistance, reducing the voltage across the diode. The diode is able to regulate the voltage, allowing for safe operation of the device or system. This process is referred to as voltage regulation, and it is the primary function of a single Zener diode.

Applications

The primary application of BZG04-10-HM3-18 is in the industrial and automotive industries where it is used to regulate and protect circuits from the effects of voltage surge or drop. It is typically used to increase the life and reliability of electronics and systems. Additionally, it can be used to reduce interference in audio-visual products, enabling clearer transmission of audio and video signals. Other applications of the BZG04-10-HM3-18 include switching power supplies, computers and logic boards, LED lighting systems, and any other applications that require voltage regulation.

Conclusion

The BZG04-10-HM3-18 is a single Zener diode designed to regulate voltage across a circuit and protect components from voltage surges or drops. It operates on the principle of reverse breakdown, using a Zener Breakdown Layer to conduct the appropriate current levels across its P-N junction. The BZG04-10-HM3-18 is commonly used in industrial electronics, automotive applications, and other general-purpose electronics applications. By regulating its voltage, it allows for safer operation and an increased life of the system.

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