MMBZ5233BW-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Voltage - Zener (Nom) (Vz):	6V
Tolerance:	±5%
Power - Max:	200mW
Impedance (Max) (Zzt):	7 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 3.5V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SOT-323
Base Part Number:	MMBZ5233B

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Introduction

MMBZ5233BW-7 is a type of Zener diode, which is a specialized type of diode mainly used in electronic circuits for voltage regulation. It has a single PN junction designed to allow current to flow in one direction and block current flowing in the opposite direction below a specified reverse-bias voltage. The MMBZ5233BW-7 is designed with a reverse breakdown voltage of 3.3V and provides a relatively low impedance (2 Ohms max for <10 mA) compared to other Zener diodes.

Application Field

MMBZ5233BW-7 can be used in a variety of applications including power supplies, voltage regulation circuits, overvoltage protection circuits, reverse polarity protection circuits, and overload current protection circuits.In power supplies, they are typically used in positive voltage regulation to ensure that the output voltage stays within the desired range even with varying input voltage or current. Similarly, they can be used in negative voltage regulation circuits to ensure that the output voltage remains within the desired range with varying input voltages.MMBZ5233BW-7 is also used in overvoltage protection circuits in order to protect sensitive components from damage due to high voltages.In addition, Zener diodes are also commonly used as reverse polarity protection circuits, which prevent reverse current from flowing into the circuit due to reversed battery connections or other misconnections.Finally, they are also used in overload current protection circuits, which prevent excessive currents from damaging the device due to malfunction or short circuits.

Working Principle

The working principle of the MMBZ5233BW-7 is based on the fact that when a voltage is applied to a diode in the reverse direction, the diode will not allow any current to flow until the voltage reaches a certain level known as the breakdown voltage.Once this voltage is reached, the diode will allow current to flow in a manner known as Zener breakdown. This means that the current is controlled by the value of the reverse bias voltage, which results in the Zener diode having a fixed voltage drop much like a normal diode.The MMBZ5233BW-7 has a breakdown voltage of 3.3 V, which means that it will allow current to flow once the reverse bias voltage reaches 3.3 V. This voltage is well below the voltage which would destroy other components in the circuit, making it an ideal choice for reverse polarity protection and overvoltage protection circuits.

Conclusion

The MMBZ5233BW-7 Zener diode is an excellent choice for a variety of applications including power supplies, voltage regulation circuits, overvoltage protection circuits, reverse polarity protection circuits, and overload current protection circuits. It is well suited for these applications due to its low impedance, reverse breakdown voltage of 3.3V, and ability to withstand high voltages.

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