1N4732A,133

Series:	--
Packaging:	Tape & Box (TB)
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 ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Base Part Number:	1N4732

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Introduction:
1N4732A is a type of diode that be categorized into the family of zener single. It’s widely used in various practical applications, such as power supply, over-voltage protection, etc. It’s also called as a “shunt regulator” due to its unique working principle.

Background:
In order to understand its application field and working principle, it is necessary for us to know about its specifications which are the main indicators on its performance.

Specifications:
1N4732A is a type of diode with some basic specifications. Its rated power dissipation is 0.5W, voltage rate from 6.2V to 43V, and its maximum forward voltage drop is 0.8V, maximum reverse leaker current is 0.5uA, etc. These specifications indicate that it can be used in a voltage range from 6.2V to 43V power supplies. It also has a low reverse leakage current that meets the requirements of most applications.

Features and Application Field:
1N4732A has some features that make it ideal to be used in many industrial applications. It has a power dissipation of 0.5W, low reverse leakage current, and low forward voltage drop, which make it ideal for power supply and over-voltage protection applications. It can also be used as a shunt regulator in order to provide protection against over-voltages and over-currents.

Working Principle:
The working principle of the 1N4732A diode is based on its “Zener Breakdown” mechanism. In this mechanism, when the voltage across the diode exceeds the Zener voltage, the electric current flows through the diode along the Zener region. This Zener current will be dissipated in the form of heat, and the excess current will be diverted to the load. This helps to protect the load from over-current and potential over-voltage damage. The amount of current that is diverted to the load depends on the Zener voltage and the current passing through the diode, which can be controlled depending on the application requirements.

Conclusion:
1N4732A is a type of diode which is categorized into the family of zener single. It has some features that make it ideal for power supply and over-voltage protection applications. Its working principle is based on the “Zener Breakdown” mechanism, which helps to protect the load from potential over-voltage damage. Therefore, it is widely used in various industrial applications.

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