SMBZ5931B-E3/5B

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	18V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	12 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 13.7V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMBJ)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

SMBZ5931B-E3/5B Application Field and Working Principle

Diodes can be classified into different types based on their performance, and Zener diode is one of them. The SMBZ5931B-E3/5B is one of the most popular Zener diodes of its kind, used for a wide range of applications. In this article, we will discuss the application field and working principle of SMBZ5931B-E3/5B.

Application Field

The SMBZ5931B-E3/5B Zener diode is a high voltage, low current device and is mainly used as protection devices in circuits, providing stable voltages and limiting the output voltage of circuits when they are under high-voltage or no-load conditions. The diode is most suitable for applications such as voltage regulation, in-circuit transient suppression, power regulation, and power conditioning. The SMBZ5931B-E3/5B diode has a recommended maximum forward voltage of -1V to 6V and a forward surge current of 9Amps for 10mS. The reverse current leakage of the device is very low and it can handle power up to 6W. The device also has a high maximum rated voltage of 500V, making it one of the highest rated diodes in the market. Because of its versatile characteristics, the SMBZ5931B-E3/5B diode is used in several consumer electronics and industrial equipment such as LCD displays, computer and communication systems, automotive circuits, automotive HVAC systems and industrial controllers.

Working Principle

The working principle of the SMBZ5931B-E3/5B diode is based on the concept of breakdown voltage. When the forward voltage, Vf, is greater than the breakdown voltage, Vb, the diode starts to conduct. This phenomenon is known as Zener knee and is used to obtain a steady voltage from the diode. The diode has a maximum power rating of 6W and nominally a reverse voltage of 500V, but it conducts at lower reverse voltages due to Zener breakdown. The reverse current ratings of the device change as current and voltage increase. The breakdown voltage of the SMBZ5931B-E3/5B is dependent on the design of the chip itself. When the SMBZ5931B-E3/5B is connected to a particular circuit, it starts to conduct when the voltage under load exceeds the specified diode breakdown voltage. When this occurs, the diode starts to conduct and reduces the output voltage to a more controllable level. This voltage is usually fixed and determined by the diode’s breakdown voltage. The diode also reduces the current flowing through the device as it stabilizes the output voltage.

Conclusion

In conclusion, the SMBZ5931B-E3/5B is primarily used as a protection device in circuits, providing a stable voltage and limiting the voltage of the circuit when it is under high-voltage or no-load conditions. The working principle of the device is based on the concept of breakdown voltage, in which the diode conducts at lower reverse voltages and reduces the output voltage to a more controllable level. The device is used in a variety of consumer electronics and industrial equipment.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description