TZX18A-TAP

Series:	Automotive, AEC-Q101
Packaging:	Tape & Box (TB)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	--
Power - Max:	500mW
Impedance (Max) (Zzt):	55 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 13V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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Overview

The TZX18A-TAP is a single-voltage Zener diode designed for easy use in a variety of applications. With a range of 5.2 to 18 volt operation and a low forward voltage drop of 1.1 volts, the TZX18A-TAP is a versatile diode that can be used in a wide range of applications from power supplies to transistors.

Application Fields

TZX18A-TAP diodes are used in many different applications including power supplies, voltage stabilization, protection circuits, and switching. They are designed for easy use in a variety of applications and can handle higher current spikes than regular diodes can. The low forward voltage drop of the TZX18A-TAP allows them to be used in a variety of applications where a low quiescent current is desired.In power supplies, they are used to regulate the voltage output by acting as a shunt regulator. This means that as the output voltage rises, the TZX18A-TAP will start to conduct, shunting any additional voltage away from the output.In voltage stabilization, they are used to keep the voltage in a stable range. This is achieved by having the Zener diode maintain a specific voltage difference between the input and output of the circuit.In protection circuits, the Zener diode is used prevent damage to the circuit from overvoltage by acting as a switch. The TZX18A-TAP is designed to handle higher current spikes that regular diodes can not and prevents overvoltages from damaging circuits.In switching applications, the TZX18A-TAP acts as a switch that can be used to turn a circuit on or off. This is done by allowing the Zener diode to conduct current once the voltage threshold is reached.

Working Principle

The TZX18A-TAP is a Zener diode. Zener diodes work when current is applied, in the forward direction, across the diode. As the voltage reaches a certain level, the diode will start to conduct and drop the voltage, shunt away any additional voltage or current.When the voltage becomes too low to keep the TZX18A-TAP in conduction mode, the voltage will start to climb again until the diode again starts to conduct. This cycling of voltage can be used to regulate a circuits output and keep the voltage in a constant range.In addition, the TZX18A-TAP can also be used in protection circuits. The Zener diode is designed to prevent overvoltages from damaging the circuit. When the voltage reaches a certain level, the diode will start to conduct and shunt away the excess voltage.

Conclusion

The TZX18A-TAP is a versatile single-voltage Zener diode designed for easy use in a variety of applications. It has a wide range of operation from 5.2 to 18 volts and a low forward voltage drop of 1.1 volts, making it a great choice for applications that require low quiescent current. It can be used in power supplies, voltage stabilization, protection circuits, and switching applications. It works by conducting current when the voltage reaches a certain threshold and then shunting away the excess voltage or current.

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