Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	6.8V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	2.5 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 5.2V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	SMB
Base Part Number:	SMB5921

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1SMB5921BT3 Application Field and Working Principle

Introduction to 1SMB5921BT3

The 1SMB5921BT3 is a single Zener diode specifically designed for use in power management applications. As a Zener diode, the 1SMB5921BT3 is capable of producing a low level of forward voltage, even at high currents. It is also capable of performing high switching performance and low noise operation.

1SMB5921BT3 Application Field

The 1SMB5921BT3 can be used in a variety of applications, including power management, data protection, and voltage regulation. As it is specifically designed for power management applications, it can be used in a variety of power circuit designs, including DC–DC converters, overvoltage protection circuits, and voltage switching circuits. Additionally, it can be used in a variety of industrial applications, including automotive, industrial, and computer applications. As it is a low noise device, it is suitable for use in hearing aid applications as well.

1SMB5921BT3 Working Principle

The 1SMB5921BT3 works by allowing the current to flow in one direction when voltage near the diode\'s breakdown voltage is applied. This breakdown voltage, also known as the Zener voltage, is a stable voltage level and will remain constant regardless of changes in external conditions. The Zener voltage is determined by two factors - the size and shape of the semiconductor material as well as the doping impurities. Zener diodes are also unique in that they will also conduct in reverse, allowing current to flow in both directions when a reverse voltage is applied. This provides the opportunity for voltage regulation and protection against overvoltage.

Conclusion

The 1SMB5921BT3 is a single Zener diode specifically designed for use in power management applications. It is capable of producing a low level of forward voltage, even at high currents, while also providing high switching performance and low noise operation. The 1SMB5921BT3 can be used in a variety of power circuit design applications, as well as a variety of industrial applications. It works by allowing the current to flow in one direction when voltage near the diode\'s breakdown voltage is applied, and also allows current to flow in both directions when a reverse voltage is applied.

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