1SMB5948 M4G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	91V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	200 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 69.2V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMB)

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Introduction

The 1SMB5948 M4G is a single Zener diode with unprecedented performance capabilities for its size. It is designed for use in critical applications such as input voltage protection, reverse currents and gate drive protection. As the world’s smallest single Zener diode, the 1SMB5948 M4G offers a robust solution with a wide range of operating voltages and very low forward voltage drop.

Application Field of 1SMB5948 M4G

The 1SMB5948 M4G is one of the most versatile Zener diodes in the market today. It can be used for a wide variety of applications including protection for critical system components, electric power management, DC/DC converters and solar panel protection. It is suitable for performing low (<0.2V) voltage operations and providing superior voltage stabilization in high-speed switching configurations.

Working Principle of 1SMB5948 M4G

The 1SMB5948 M4G device works similarly to conventional Zener diodes. It has a built-in electric field which, when some potential is applied, varies its characteristics in a way proportional to the applied potential. When the applied potential is greater than the Zener diode’s potential, the diode enters the breakdown regime and a current begins to flow. This current is determined by the ohmic resistance of the junction and the applied electric field.The 1SMB5948 M4G should be connected in the reverse direction from the main device. It then effectively acts as a voltage regulator, effectively clamping the main device’s voltage and protecting it from any unexpected spikes in the input voltage. It should be noted that the operating temperature should not exceed 150°C, as prolonged exposure to high temperatures can reduce the life of the diode.

Conclusion

In conclusion, 1SMB5948 M4G is a highly advanced single Zener diode designed for wide range of applications. It works similarly to conventional Zeners, but with a significantly smaller Chip size and a much lower forward voltage drop. Its wide operating voltage range and superior voltage stabilization makes it an ideal choice for providing reliable and long-term protection in critical system components, electric power management, DC/DC converters and solar panel protection.

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