CDSOD323-T08S Circuit Protection

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Transient Voltage Suppression (TVS) diodes are electrical components used to protect sensitive circuits from overvoltage, overcurrent, and electrostatic discharge. The CDSOD323-T08S is a widely used unidirectional TVS diode offered by SOD-323 package that provides high levels of protection from high-energy power surges and transients. This paper will discuss the application field and working principles of the CDSOD323-T08S.

Application Fields

The CDSOD323-T08S can be used in a wide variety of applications, such as automotive, computer, consumer electronics, and medical electronics. It is often used in automotive applications since it has a wide operating temperature range of -55 to 125°C. In automotive applications, it can be used to protect sensitive circuits in the event of power transients and surges, as well as from electrostatic discharge (ESD). It can also be used in computer applications, consumer electronics, and medical electronics where high levels of protection are required from overvoltage and overcurrent.

Working Principle

The CDSOD323-T08S is a unidirectional device, meaning it can only conduct current in one direction. It features an integrated Zener diode and a P-type MOSFET in a single package. When exposed to a voltage higher than its nominated breakdown voltage, the Zener diode will break down, resulting in a high conduction current in the reverse direction. The P-type MOSFET will then conduct current in the reverse direction, which will protect the circuit from transient voltage spikes. Additionally, the CDSOD323-T08S also offers high-speed protection from ESD, as the P-type MOSFET will turn on quickly to safely dissipate any energy generated by an ESD event.

Conclusion

The CDSOD323-T08S is a unidirectional TVS diode capable of providing high levels of protection from overvoltage, overcurrent, and electrostatic discharge. It is often used in automotive applications due to its wide operating temperature range, and can also be used in a wide variety of other applications, such as computer, consumer electronics, and medical electronics.

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