SMZG3803BHE3/5B

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	39V
Tolerance:	±5%
Power - Max:	1.5W
Impedance (Max) (Zzt):	45 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 29.7V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-215AA, SMB Gull Wing
Supplier Device Package:	DO-215AA (SMBG)
Base Part Number:	SMZG3803

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Introduction to SMZG 3803BHE3/5B

SMZG 3803BHE3/5B are single-diode Zener diodes used in electronic circuits. The diode is a semiconductor device that can allow only one-way current flow. The purpose of the diode is to provide an electrical path which is safe and efficient for current flow. The SMZG 3803BHE3/5B are constructed using an aluminum-doped zinc-oxide material.

Application Field and Working Principle

The SMZG 3803BHE3/5B is designed for wide range of application. It can be used in the power management of DC/DC converters, overcurrent protection, ESD protection, power supply ripple suppression and low voltage clamping. With their low forward voltage drop and low reverse leakage current, SMZG 3803BHE3/5B are suitable for a wide range of applications ranging from consumer electronics to industrial applications. The working principle of the SMZG 3803BHE3/5B diodes are based on the Zener effect, which states that when a semiconductor is operated in reverse bias, electrons will jump from the N type regions to the P type regions, creating an electric field in the P-N junction. The SMZG 3803BHE3/5B diodes have a breakdown voltage of 4.7V and a clamping voltage of 5.0V. When a voltage applied to the diode is greater than 4.7V, the electrons jump across the junction and create an electrical current. This current will then flow through and protect the circuit, limiting the voltage across the diode to the Zener voltage and claming the voltage of the circuit. The Zener effect in SMZG 3803BHE3/5B diodes can be used for many applications. It can be used for regulating output power, providing overvoltage and reverse protection, snubbing, noise filtering and spike suppression.

Applications of SMZG 3803BHE3/5B

One of the most common applications for SMZG 3803BHE3/5B diodes is in DC/DC converters. DC/DC converters are used to convert one voltage to another and are widely used in consumer electronic devices to provide a stable power supply. The SMZG 3803BHE3/5B can be used to provide overcurrent protection in DC/DC converters. The diode will clamp the voltage at the output, preventing overcurrent.The SMZG 3803BHE3/5B can also be used in ESD protection circuits. ESD, or Electrostatic Discharge, is a sudden discharge of static electrical energy. It can cause damage to electronic components if left unprotected. The SMZG 3803BHE3/5B can be used to absorb this energy and limit the voltage, preventing damage to the components.The SMZG 3803BHE3/5B can also be used for power supply ripple suppression. When AC voltage is applied to a diode, the diode will limit the voltage to its breakdown voltage, which will then be smoothed into a DC voltage. This DC voltage can then be used in the power supply to provide a stable supply of power.The SMZG 3803BHE3/5B can also be used for low voltage clamping. When a voltage higher than the breakdown voltage is applied, the diode will become “on” and will limit the voltage to the clamping voltage. This can help protect the circuit from damage by overvoltage.

Conclusion

The SMZG 3803BHE3/5B is a Zener diode that can be used in a wide range of applications. The diode is designed for power management of DC/DC converters, overcurrent protection, ESD protection, power supply ripple suppression and low voltage clamping. The diode’s low forward voltage drop and low reverse leakage current make it ideal for such applications. The diode works by allowing current to flow in one direction and limiting the voltage to its breakdown and clamping voltages. As such, the SMZG 3803BHE3/5B is an effective and reliable way to protect electronic circuits from overvoltage, overcurrent, and ESD.

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