SML4728A-E3/61

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	3.3V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	100µA @ 1V
Operating Temperature:	150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)

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Diodes - Zener - Single - SML4728A-E3/61 Application Field and Working Principle

The SML4728A-E3/61 is a single, zener diode manufactured by Shanghai Shenglu, belonging to the Shenglu SML family of products. It is designed to be used in a variety of applications and is widely used in automotive, aviation, and power electronics. Its maximum voltage is 61V and it can handle up to 1 mA of current.In this short paper we will discuss the SML4728A-E3/61 application field and its working principle. Firstly, as a zener diode it is mainly deployed in semiconductor device design, and it is mainly used for protection in power electronics or as a voltage multiplier in the industrial control field. It is one of the most reliable options for low forward voltage drop and high peak current capability.In terms of its working principle, the SML4728A-E3/61 mainly works through the zener breakdown quantum mechanism. It is a voltage-dependent, nonlinear, two-terminal circuit element with a well-defined electrical behavior. When the Zener diode is reverse biased, the minority carriers in the diode’s depletion layer produce a voltage drop when they enter the depletion layer. When the Zener voltage of the diode is exceeded, the diode\'s depletion layer breaks down and current flows through the diode, allowing the diode to be used in various applications.The SML4728A-E3/61\'s most common applications include voltage regulation, as a reverse power protection device, as a voltage reference, or as a driver for other components. As a voltage regulator, the SML4728A-E3/61 is utilized in applications where the supply voltage must be kept constant or regulated at a certain level. It is able to limit or prevent the broad number of faults caused by over-voltage.Moreover, it can also be utilized as a reverse power protection device in circuits or equipment to prevent them from being damaged or burnt out due to overvoltage or wrong polarity. As a voltage reference, it is used to provide a reference voltage for non-inverting op-amp applications, or as a driver for other semiconductor devices.In conclusion, the SML4728A-E3/61 is a single, zener diode manufactured by Shanghai Shenglu. It has a maximum voltage of 61V and can handle up to 1 mA of current. It is deployed in semiconductor device design and is mainly used for protection in power electronics or as a voltage multiplier in the industrial control field. Its working principle is based on zener breakdown quantum mechanism and its common usage includes voltage regulation, as a reverse power protection device, as a voltage reference, or as a driver for other components.

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