1N4732AUR

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	4.7V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	8 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB

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Diodes - Zener - Single – 1N4732AUR Application Field and Working Principle

The diode series is an important class of negative voltage regulation devices. The 1N4732AUR Zener diode performs its negative voltage stabilization among a large number of diodes in this series. Its has wide application in the fields of broadcasting and communications, automation, industrial measurements and control, instrumentation and other industrial fields.The 1N4732AUR Zener diode operates by providing a unilateral conduction pathway for any reverse current flow, resulting in a decrease of forward voltage. When the zener threshold voltage is reached, a partial current starts to flow in reverse direction, which increases exponentially and increases the reverse voltage of the Zener diode. As the forward bias current increases, the diode reaches its breakdown voltage and begins to regulate in greater detail. The forward voltage is decreased to a constant value, resulting in a Voltage Stabilization Effect.The 1N4732AUR consists of a lightly doped silicon p-n junction diode, which is specially designed to have a high Zener breakdown voltage. This diode also has an optical isolator that eliminates external electric field stress to provide better stability, higher reliability and better accuracy. Unlike other diodes, the 1N4732AUR has two electrodes, one for the anode and one for the cathode. The operation and the voltage stabilization of this device depend upon the threshold voltage at which the Zener breakdown voltage occurs.The zener breakdown voltage is determined primarily by the doping concentration of the heavily doped N-Type layer and the percentage of the Zener resistance. The zener breakdown voltage is maintained as constant when the current is controlled by the power passing, which gives rise to the term “Zener voltage regulation”.In summary, the 1N4732AUR Zener diode is a key component in many applications, such as broadcasting and communications, automation, industrial measurements and control, instrumentation and other industrial fields. It has an excellent performance in terms of stability, reliability, accuracy and linearity. Its isolation feature provides better isolation compared to other diodes in the series. It provides excellent voltage regulation by providing a highly constant voltage when the current is densely controlled.

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