1SMB5948 R5G

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

1SMB5948 R5G, a beam power zener diode from Diodes Inc, is a single Zener diode. It provides efficient blocking capability with low leakage. This zener diode is featured with low Zener impedance, high breakdown voltage and good stability characteristics. The 1SMB5948 R5G is widely used in power supplies, general purpose converters, filters and more.

Application Field

1SMB5948 R5G is a power Zener diode, which is mainly suitable for applications such as general purpose converters, power supplies, regulators, filters, etc. It is especially suitable for the extreme temperature range of -65°C and 175°C. As a Zener diode, it is used in many applications related to power management, such as voltage regulation, transient protection, and voltage clamping.

Advantages

1SMB5948 R5G has several advantages that make it suitable for a wide range of applications. Its low Zener impedance and superior voltage stability, makes it suitable for high-current applications. It has a breakdown voltage of 5.4V, which guarantees good avalanche behavior. Its high blocking capability, prevents reverse current in the device, enabling the safe operation of the system. Its extremely low leakage, allows it to be used in power-sensitive circuits, where minimum power loss is required. Its wide range of temperature range guarantees good stability, even in extreme conditions.

Working Principle

1SMB5948 R5G is a single Zener diode, which means it has only one PN junction. It works on the principle of avalanche breakdown, which occurs when the voltage across a PN junction passes the "critical" value. When the voltage across the PN junction reaches the breakdown voltage, the diode starts to conduct. This results in a sudden increase in current, thus forming a low-impedance path. In the reverse bias condition, the diode acts as a rectifier and blocks any negative voltage across its terminals. This is because the depletion region of a PN junction forms a barrier, which prevents the flow of electrons from the anode to the cathode.

Conclusion

1SMB5948 R5G is a single Zener diode from Diodes Inc., with low Zener impedance, high breakdown voltage and good stability characteristics. It is mainly suitable for applications such as general purpose converters, power supplies, regulators, filters, etc. because of its ability to efficiently block and regulate current. Moreover, it has a wide temperature range and low leakage, which makes it suitable for low power loss applications. The working principle of this Zener diode is based on the avalanche breakdown mechanism. As a result, it is frequently used for voltage regulation, transient protection and voltage clamping.

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