BZX85B18-TR

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	±2%
Power - Max:	1.3W
Impedance (Max) (Zzt):	20 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 13V
Operating Temperature:	-55°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41

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Introduction

The BZX85B18-TR is a high efficiency, low voltage Zener Diode that is commonly used for a wide range of electronic applications. This device is commonly used for noise suppression, signal conditioning and protection against over-voltage. It is often utilized to protect the power system from any over-voltage faults.

Application field

The BZX85B18-TR is often used in the design of power supply units and can be found in applications such as automotive, industrial and computer designs. It can be used for circuit protection as well as dynamic voltage regulation and voltage noise reduction. Moreover, this device is used in the automotive industry as a regulator for all types of vehicle protection and operation. It is also used in the design of consumer electronics, such as personal computers, cell phones and other audio/video applications. The BZX85B18-TR is also used in the design and testing of military equipment, test and measurement instrumentation, surveillance systems, and military weapons. The device is also beneficial for motor control, power conversion and other power-related applications.

Working Principle

A Zener Diode is an electronic component consisting of a semiconducting material between two terminals. When voltage is applied to its two distinct terminals, the diode will only conduct current in forward when the voltage between its terminals reaches a certain threshold level. This voltage threshold level is known as the breakdown voltage of the device. The device will then become reverse-biased and will allow current to flow in a reverse direction. The reverse current that is allowed to flow is referred to as the breakdown current of the device.When the BZX85B18-TR is used, it will operate as a two-stage Zener diode. In its first stage, the device will act as a normal diode and will allow current to flow in a forward direction. In its second stage, the breakdown voltage of the device will be reached and the device will then act as a Zener diode, allowing current to flow in reverse direction.

Conclusion

The BZX85B18-TR is a high efficiency low voltage Zener Diode that is commonly used for a wide range of electronic applications. This device can be used for noise suppression, signal conditioning and protection against overvoltage, as well as being utilized in motor control, power conversion and other power-related applications. It can be found in numerous applications from automotive to military systems, and its operation can be explained as a two-stage Zener diode.

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