TZX22A-TR

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Diodes - Zener - Single is a type of semiconductor device that’s used for controlling and regulating voltages in electronic circuits. The component TZX22A-TR is a perfect choice for use in mobility and automotive applications thanks to its ultra-low noise and high-surge current protection.

Overview of TZX22A-TR

The TZX22A-TR from GSMC is a single Zener diode in glass-passivated package. It’s a low-leakage diode with a low forward voltage drop and can be effectively used in a variety of circuits where a small signal level is desired. The device has a peak pulse power rating of 500 mW with a 15 kV interelectrode pulse. It’s mainly used in applications that involve a moderately high reverse voltage such as voltage regulators, voltage clamping, noise reduction, and protection circuits.

TZX22A-TR Application Field

The TZX22A-TR Zener diode is mainly used for voltage regulation, voltage clamping, noise reduction and protection circuits. It is particularly suited for use in high-performance and high-reliability automotive and mobility applications, due to its ultra- low noise and high-surge current protection.

The device provides excellent stability and reliability due to its use of glass- passivated junction. It has advanced power rating, up to 500 mW, which makes it suitable for low-power designs. It also features a low forward voltage drop, and its high reverse voltage spike protection makes it ideal for protecting against high-frequency signal spikes commonly encountered in automotive applications.

TZX22A-TR devices are also used in LED lighting and audio circuits. The components are used to protect speakers and other audio devices from interference and power fluctuations. The robust reverse leakage current and thermal runaway characteristics make the diode an ideal choice for use in these applications. The low forward voltage drop provides excellent audio clarity, while the high surge current protection efficiently protects against power spikes and sudden changes in the audio system’s power supply.

TZX22A-TR Working Principle

The TZX22A-TR has a semiconductor structure consisting of a single p-n junction that allows a current to flow in only one direction. When the voltage across the diode exceeds the Zener voltage, the junction breaks down and conducts in the reverse direction. This process is known as Zener breakdown. This breakdown voltage is known as the Zener voltage and typically ranges from 5.1V to 20V for the TZX22A-TR.

The device works by drawing current from the power source and dissipating it in the form of heat. This has the effect of providing an essentially constant voltage, even when the input voltage fluctuates. The device acts as a voltage regulator, and the required Zener voltage is maintained as long as the current drawn is less than the maximum value specified by the manufacturer.

TZX22A-TR diodes also feature thermal runaway characteristics. This means that when the diode is subjected to excessive temperature or power dissipation, the voltage regulator will reset itself automatically to prevent thermal damage or additional power dissipation.

Conclusion

TZX22A-TR is a low-leakage, high surge current protection Zener diode specifically designed for use in high-performance and high-reliability automotive and mobility applications. It features an ultra-low noise and a peak pulse power rating of 500 mW, making it suitable for low-power designs. In addition, the device has advanced thermal runaway characteristics that reset the voltage regulator if the device is subjected to excessive temperature or power dissipation.

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