TZS4705-GS08

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	±5%
Power - Max:	500mW
Current - Reverse Leakage @ Vr:	50nA @ 13.6V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 100mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	SOD-80 Variant
Supplier Device Package:	SOD-80 QuadroMELF

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Diodes - Zener - Single The TZS4705-GS08 Zener diode is a small, low-power device for electronics projects, primarily for its applications in regulating low voltages. They have a fixed breakdown voltage (Vz) and a wide range of power ratings (mW) for small signal and load sensing circuits. It is suitable for use in low-voltage, low-power applications such as diode-clipper circuits, voltage limiting and regulator circuits, linear-DC-DC converters, ESD protection circuits, low-power voltage controllers and low-power switching regulators. The term Zener diode is a generic phrase applied to any diode that exhibits a breakdown voltage in excess of 1000 volts. This breakdown voltage allows them to be used in various rectifier, voltage regulator and clipper circuits, both linear and switching. The principle is basically the same no matter what type of diode is being used. The TZS4705-GS08 Zener diode works by having two junctions in a single structure. One junction is made up of a P-type semiconductor material and the other is made up of an N-type material. As voltage is applied across the two junctions, a small current, known as the reverse current or breakdown current (Iz), will begin to flow through the diode, allowing electrons to flow from the N-junction to the P-junction, creating an internal voltage gradient across the device. When sufficient voltage is applied to the junction, the zener breakdown occurs, producing a rapid avalanche process, also known as a zenering effect. As current begins to rise exponentially, the PN junction blocks most of the voltage, limiting the voltage to the Vz (the breakdown voltage) of the device. As the applied voltage increases, the current in the diode will rise to its maximum value (Izk), the knee current, so the voltage drop across the diode will stay at Vz. In addition, TZS4705-GS08 Zener diodes are designed to operate at a specified voltage and dissipate a maximum power rating of 60 mW. This maximum power rating is sometimes referred to as the thermal limit of the diode, since it is the point at which the device will start to heat up. It is important to ensure that the maximum power rating is not exceeded, as this can result in permanent damage to the device and possible surrounding circuitry. The TZS4705-GS08 Zener diode can be used in a variety of applications, including voltage regulation and surge protection, providing a low-cost, simple solution for the regulation of voltages. It can be used to regulate voltages from Laptop computer power supplies, USB power adapters and other power supplies. It is also suitable for use in interfacing circuits for TTL logic and memory circuits with ESD protection. It can also be used in low-current, low-power switching and linear regulator circuits. As a voltage regulator, the TZS4705-GS08 Zener diode can be used to maintain a constant voltage output over a range of input voltages. The output voltage is determined by the choice of the specific breakdown voltage. For example, a 15V breakdown voltage would result in an output voltage of 15V, regardless of the input voltage. In summary, TZS4705-GS08 Zener diodes are small, low-power devices used for voltage regulation and surge protection. They are suitable for use in low-voltage, low-power applications, and can be used in a variety of circuits, including diode-clipper circuits, voltage limiting and regulator circuits, linear-DC-DC converters, ESD protection circuits, low-power voltage controllers and low-power switching regulators. They provide a low-cost, simple solution for the regulation of voltages, as well as protection against electrostatic discharge.

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