1N733

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	62V
Tolerance:	±10%
Power - Max:	250mW
Impedance (Max) (Zzt):	170 Ohms
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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1N733 Application Field And Working PrincipleA 1N733 Zener diode is a type of single diode. It is a small signal, low current device with a standard breakdown voltage of 4.7V. It was developed to provide a stability of voltage against the level of current in electronic circuits. It is primarily used as a voltage reference or stabilizer, and is also sometimes used for overvoltage protection. A Zener diode is similar to a standard diode; it is simply a two-terminal device that allows for current to flow in one direction and not in the other. However, it is designed to have reversed bipolar characteristics; instead of the standard forward bias and reverse bias, it is designed to operate in the reverse bias mode. In a Zener diode, the depletion region is much thicker than a standard diode due to more doping impurities present in the area. This thicker depletion region makes it easier for electrons to cross the junction when voltage is exceeded, allowing current to flow in the reverse direction. When a forward bias is applied to the Zener diode, current will flow easily. When the applied voltage reaches the Zener voltage, current will plateau and voltage remains stable. This is the breakdown region of the diode and is called the Zener effect. The Zener diode used in the 1N733 variety is a 4.7V device; meaning that it is designed to operate with a breakdown of 4.7V. The maximum power rating for this device is 500mW, which is enough for many low power applications. Many devices are now tolerant of up to 5.2V, providing a more reliable circuit. The 1N733 Zener diode has a wide range of applications, from voltage regulation to overvoltage protection. The device can be used to regulate an AC voltage down to 4.7V DC and also to provide a stable reference voltage for circuits. For example, during power surges, it can be used to limit the input voltage of a circuit so it does not exceed a certain maximum. In addition, a Zener diode is sometimes used as a current limiter for low current applications. A series resistor is placed in front of the diode and the voltage across it is kept in check by the diode. When the current reaches a certain level, the voltage will no longer increase, creating a stable current limit. Overall, the 1N733 Zener diode is an inexpensive device with a wide range of applications. It can be used to provide a reliable reference voltage, regulate AC voltages down to 4.7V DC, provide overvoltage protection and also serve as a current limiter. With its low power rating, it is suitable for many low current projects.

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