CMHZ5266B TR

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CMHZ5266B TR Application Field and Working Principle

CMHZ5266B TR is a single, surface mount Zener diode specifically designed for use in extremely high temperature applications where temperature range is up to 175°C, an operating temperature of 175°C, and a peak temperature of 200°C. Although these diodes are made of thermally sensitive materials and are amongst the most fragile of semiconductor devices, the CMHZ5266B TR is designed to prevent thermal damage with a gold-plated frame and a specially designed terminal pad.

Working principle

Zener diodes like the CMHZ5266B TR are based on a reverse breakdown principle. During normal operation, they function like a standard diode, which allows current to flow in one direction only. As the voltage across the diode is increased, the current likewise increases. When the voltage reaches a certain level, however, the current suddenly increases dramatically, which is known as reverse breakdown. This reverse breakdown is the basic principle of how Zener diodes work and how they provide voltage regulation.

Application field

CMHZ5266B TR diodes are commonly used in automotive and industrial applications where extremely high temperatures are normal. In automotive electronics, for instance, the reverse breakdown properties of Zener diodes make them highly sought-after for their ability to reduce the risk of voltage spikes. Zener diodes are also valuable for the protection of sensitive equipment from voltage surges, spikes, or other malfunctioning power supplies.

The CMHZ5266B TR is also used in applications such as high power switch-mode power supplies, inverters, uninterruptible power supplies, engines, radios, and embedded systems. The exceptionally high temperature rating also enables them to be used in harsh environments where other diodes may not be able to perform reliably.

Conclusion

The CMHZ5266B TR is an excellent option for applications that require a high temperature operation. Its reverse breakdown principle makes it an especially suitable choice for voltage regulation, surge protection, and other applications in the automotive and industrial sectors. With a gold-plated frame and a specially designed terminal pad, the CMHZ5266B TR is able to maintain a maximum temperature of 200°C, making it a great choice for high power and high temperature applications.

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