CZRFR2V4B-HF

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The CZRFR2V4B-HF belongs to the category of Diodes - Zener - Single. It plays an important role in many circuit designs and applications. Through a clear understanding of its application field, working principle and other parameters, engineers can better leverage its benefits.

Application Field

The CZRFR2V4B-HF is a Zener diode, which is widely used for voltage regulation, overvoltage protection, and surge current protection, such as in mobile phones, laptops and other portable electronic devices. It can function as a voltage regulator in order to operate with a precise voltage level, by allowing the voltage to flow in one direction. The reverse leakage current through the Zener diode needs to be precisely controlled, and the CZRFR2V4B-HF can fulfil this need.

The CZRFR2V4B-HF is also used as a voltage reference. By adjusting the current that passes through the diode and therefore changing the voltage level, designers can use it as a precise voltage reference. It is also used in other voltage regulation applications, such as in AC-DC converters and SMPS modules.

The CZRFR2V4B-HF can also be used as a temperature sensor, as the voltage drop across it increases with temperature. This allows engineers to measure the temperature of a circuit, by monitoring the voltage drop across the CZRFR2V4B-HF. This can be especially useful for applications in extreme environments, such as high temperature or cryogenic temperature applications, as the CZRFR2V4B-HF is designed to withstand temperatures up to 175 degrees Celsius.

Working Principle

The CZRFR2V4B-HF operates under the principle of a reverse breakdown voltage. When the voltage across the device is greater than the breakdown voltage, a large amount of current starts to flow in the reverse direction. The breakdown voltage is known as the Zener breakdown voltage and is precisely adjustable in the CZRFR2V4B-HF. By controlling this breakdown voltage, engineers can precisely adjust the operating voltage of the device.

The CZRFR2V4B-HF is essentially a P-N junction diode. When the voltage across the device is below the breakdown voltage, only a small amount of current flows in the reverse direction. As the reverse voltage is increased, the breakdown voltage is reached, and a larger amount of current starts to flow in the reverse direction. This is the principle upon which the CZRFR2V4B-HF operates.

Features

The CZRFR2V4B-HF is designed to withstand temperatures up to 175 degrees Celsius, which makes it suitable for applications in extreme temperature environments. It has an operating temperature range from -45 to 175 degrees Celsius, and a storage temperature range from -55 to 150 degrees Celsius. The breakdown voltage is adjustable from -1.32V to -45V, and the operating current is adjustable from 200mA to 1.2A.

The CZRFR2V4B-HF also has a very low reverse leakage current, which is important for applications such as overvoltage protection or voltage reference. The reverse leakage current is typically less than 10 microamps, making it suitable for applications in low power designs.

In addition, the CZRFR2V4B-HF is a very small device and has a small form factor. It has a body size of only 1.5mm x 0.6mm, which makes it suitable for use in small footprints and designs. Its compact size also allows it to be used in mobile phones and other electronic devices, where space is at a premium.

Conclusion

The CZRFR2V4B-HF is a Zener diode that belongs to the Diodes - Zener - Single category. It is used in applications such as voltage regulation, overvoltage protection, voltage reference and temperature sensing. It has a breakdown voltage that can be precisely adjusted and also has a very low reverse leakage current. Furthermore, it is capable of withstanding temperatures up to 175 degrees Celsius, and its small size allows it to be used in small footprints and mobile designs. Through understanding its application field, working principle and other parameters, engineers can better leverage its benefits.

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