PESD2USB3SZ Circuit Protection

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A PESD2USB3SZ (Protected ESD/Transient Voltage Suppressor Diode in Ultra Small SOD-323 Package) is a type of TVS (Transient Voltage Suppressor) diode designed for protection of electronics from electrostatic discharge (ESD) and other short-duration voltage spikes. This diode is particularly well suited to applications requiring high temperature and/or high power operation, as it has a reverse breakdown voltage of up to 48 Volts and is capable of dissipating up to 1 Watt of power.

The PESD2USB3SZ diode can be used in a variety of electronic circuits, including automotive, consumer and industrial applications. And due to its small size, it can easily be integrated into a range of designs, helping to reduce overall component count. It can also be used in communication systems, power supplies and other circuits that require surge and ESD protection.

The PESD2USB3SZ diode uses what is known as a "flyback" design, which means that when the voltage across its terminals rises to a certain level, the diode conducts electricity and then shuts off again after the voltage drops back below a certain level. This type of diode works by "firing" when an input power spike exceeds the breakdown voltage and then snaps back into a non-conducting state as soon as the voltage drops to a safe level.

In order to optimise protection for different types of inputs, the diode can be configured in either a high capacitance “slow response” mode or a low capacitance “fast response” mode. The slow response mode is useful for longer pulses with frequency rates between 10 MHz and 500 MHz, whereas the fast response mode is well suited for shorter pulses with frequency rates between 500 MHz and 3 GHz.

The PESD2USB3SZ diode also features an ultra-low capacitance of just 6 pF, which helps to reduce the insertion loss and ensure a clean signal transmission. For optimal stability and lifetime, the diode also features a low reverse leakage current of just 1 mA.

Overall, the PESD2USB3SZ diode is an excellent choice for ESD and surge protection applications. It\'s small size and ultra low capacitance make it well suited to a wide variety of electronic circuits, while its ability to protect against both short and long duration voltage spikes gives it the versatility to function effectively in a range of different environments.

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