NZX18C,133

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	±2%
Power - Max:	500mW
Impedance (Max) (Zzt):	55 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 12.6V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-55°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	ALF2

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Introduction

The NZX18C,133 is a new family of zener diodes that have been developed by NXP Semiconductors. They provide a high degree of thermal stability and power dissipation, and are capable of operating at high temperature and voltage ratings. The devices have a low junction-to-case thermal resistance, which provides for greater thermal stability and withstands large temperature variations without compromising performance. The NZX18C,133 is a single-sided, dual-level zener diode which has been specifically designed to provide excellent low-voltage performance. It is available in a wide range of packages and is suitable for a variety of applications.

Application Fields

The NZX18C,133 is a very versatile device which can be used in a variety of different applications. It is particularly well-suited for use in consumer electronics, automotive, industrial, and medical systems. It can be used as a voltage reference, as a voltage regulator, or as a voltage limiter.In consumer electronics, the diode is used to protect against overvoltage, undervoltage and overcurrent. It is also used to protect components from electrostatic discharge (ESD) and to provide EMI/RFI reduction. In automotive systems, it is used for motor protection, and in industrial applications, it is used for overvoltage protection and for voltage regulation. In medical systems, it is used for safety and reliability.

Working Principle

The NZX18C,133 is a Zener diode. It works by controlling the voltage in a circuit by allowing current to flow in one direction (reverse bias), and blocking it in the other direction (forward bias). When operating in reverse bias, the voltage is controlled by the built-in Zener Breakdown voltage. The Zener Breakdown voltage is the voltage at which the diode begins to conduct current in reverse bias. This Zener Breakdown voltage is determined by the doping of the diode and is referred to as the Zener Voltage.When the voltage across the diode is below the Zener Voltage, the diode acts as an open circuit and no current can flow. However, when the voltage across the diode reaches the Zener Voltage, it begins to conduct current in reverse bias. This is known as the Zener Breakdown and is the basis of a Zener diode’s operation.The NZX18C,133 is a single-sided, dual-level Zener diode. This means that there are two Zener Breakdown voltages on the diode, one on either side of the diode. When the voltage across the diode reaches the lower Zener Breakdown voltage, it begins to conduct current. As the voltage continues to increase and reaches the higher Zener Breakdown voltage, the current flowing through the diode increases significantly. The ratio between the two Zener Breakdown voltages is referred to as the Zener Ratio and is an important factor in determining the performance of the diode.

Conclusion

The NZX18C,133 is a versatile new family of single-level, dual-level Zener diodes from NXP Semiconductors. It provides excellent low-voltage performance, thermal stability and power dissipation, making it suitable for a variety of applications in consumer electronics, automotive, industrial and medical systems. The diode works by controlling the voltage in a circuit using the Zener Breakdown voltage, a voltage at which the diode begins to conduct current in reverse bias. With two Zener Breakdown voltages on either side of the diode, the NZX18C,133 is able to provide greater control and performance than traditional single-level Zener diodes.

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