SZ1SMB5922BT3G

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	7.5V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	3 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 6V
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:	1SMB

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Introduction
Diodes are semiconductor devices that allow current to flow in only one direction and act as a barrier to current in the opposite direction. Zener diodes are a type of diode that allow current to flow in either direction when the voltage is below a certain threshold. SZ1SMB5922BT3G is a type of single Zener diode that is commonly used for a number of different applications. In this article, we will discuss the SZ1SMB5922BT3G application field and its working principle.

Application Field of SZ1SMB5922BT3G
SZ1SMB5922BT3G diodes are typically used in power supplies and voltage stabilizing circuits. The diodes can be used for a variety of tasks, including:

• Limiting current
• Regulating voltage
• Protecting circuits from overvoltage
• Stabilizing reverse bias leakage currents
• Acting as overvoltage protection devices in voltage-sensitive circuits

The SZ1SMB5922BT3G also has applications in device type selection and voltage operations in electronic heating systems, display devices, power amplifiers and remote control circuit protection.

Working Principle of SZ1SMB5922BT3G
When the voltage on the diode reaches the Zener voltage, current flows through the reverse biased diode and the Zener diode. In the forward bias direction, the diode acts as a normal diode with a turn on voltage of approximately 0.7V and a low leakage current. When the voltage reaches the Zener voltage, the diode becomes reverse biased and starts conducting current in the reverse direction. This allows for a steady voltage to be maintained on the diode. Excess current will be split between the diode and the Zener diode, preventing the voltage from exceeding the Zener voltage.

Conclusion
The SZ1SMB5922BT3G is a single Zener diode that is commonly used in power supplies and voltage stabilizing circuits. Its applications include limiting current, regulating voltage, protecting circuits from overvoltage and acting as overvoltage protection devices in voltage-sensitive circuits. The diodes work by becoming reverse biased when the voltage reaches the Zener voltage, allowing for a steady voltage to be maintained on the diode.

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