MMBZ5226B-G3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.3V
Tolerance:	±5%
Power - Max:	225mW
Impedance (Max) (Zzt):	28 Ohms
Current - Reverse Leakage @ Vr:	25µA @ 1V
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 to MMBZ5226B-G3-18

The MMBZ5226B-G3-18 is a silicon surface mount Zener diode commonly used in a variety of applications. The device is designed to provide a stable voltage reference and can be used in applications where noise reduction, very low capacitance, and high power dissipation are needed. This device has an average power rating of 500mW with an operating temperature range of -65oC to + 175oC.

Application Fields of MMBZ5226B-G3-18

The MMBZ5226B-G3-18 can be used in several applications due to its superior performance. One of the most popular applications for this device is in delay-line capacitor designs. As a Zener diode, it can be used as a voltage regulator in power-supply applications, and as a clamping diode for transient protection. It is also well-suited for automotive applications due to its wide operating temperature range.The MMBZ5226B-G3-18 is also a popular choice for telecommunications applications. It is an ideal choice for RS-232, RS-485, and RS-422 communication interfaces, where a highly reliable and low noise Zener diode is required. The device can also be used for SMPS feedback and supply protection circuits, as well as for power sequencing applications.

Working Principle of MMBZ5226B

The MMBZ5226B-G3-18 operates in a very similar fashion to other Zener diodes. It is a PN junction diode operating in breakdown, where the current can pass through it in either direction. When a voltage higher than the rated breakdown voltage (Vz) is applied, it breaks down and passes a current that is proportional to the voltage. This current then passes through the Zener diode and is dissipated as heat.At low currents, the voltage across the device is approximately equal to the device\'s rated Zener voltage. At higher currents, the voltage drops according to the device\'s Zener impedance. The MMBZ5226B-G3-18 also has a reverse leakage current of less than 0.5 μA, meaning it can be used in applications where low leakage is required.

Conclusion

In conclusion, the MMBZ5226B-G3-18 is a versatile Zener diode that can be used in a variety of applications. It has a wide operating temperature range, low leakage current, and high power dissipation. It can be used as a voltage regulator, a clamping diode for transient protection, or for signal isolation purposes. Its excellent performance makes it an ideal choice for automotive, telecommunications, and power sequencing applications.

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