MMBZ5255B-G3-08

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	28V
Tolerance:	±5%
Power - Max:	225mW
Impedance (Max) (Zzt):	44 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 21V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction
MMBZ5255B-G3-08 Diodes - Zener - Single are an frequently used apparatus for controlling voltage in a circuit. This device is a SOT-23 Package Zener Diode, which used for voltage regulation, rectification, and switching applications. This diode has many advantages over traditional diodes, such as low breakdown voltages, low forward current drops, and low noise. It is also used in many applications, from consumer electronics to automotive applications.

Application Field
MMBZ5255B-G3-08 is extensively used in low voltage, low power circuit where a voltage source is needed with high accuracy. MMBZ5255B-G3-08 is preferred in these applications because they offer low zener voltage with a very low temperature coefficient and low leakage current. It is used in many consumer electronics, particularly in cell phones, as it provides accurate control of the voltage source. It can also be used in automotive circuits, as it is able to maintain a constant voltage in the presence of temperature fluctuations.

Working Principle
MMBZ5255B-G3-08 diodes work on the principle of the avalanche breakdown effect. When current flows through the diode, the electric field across the junction increases, until it reaches the breakdown value, which generates electron-hole pairs and causes the current to flow. This current is limited by a reverse current set by the Zener voltage of the diode, and the voltage across the diode remains constant. The Zener voltage is usually between 5.1 V to 9 V, and the maximum power dissipation value is 500 mW. Furthermore, the MMBZ5255B-G3-08 has a maximum reverse current of 5 mA at 25°C.

Conclusion
MMBZ5255B-G3-08 is a useful tool for voltage regulation, rectification, and switching applications. It has very low breakdown voltages, low forward current drops, and low noise, which makes it a popular choice for many electronic projects. Additionally, the MMBZ5255B-G3-08 works on the principle of the avalanche breakdown effect, which allows it to maintain a constant voltage across the diode, regardless of fluctuations in the temperature.

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