AOZ8807DI-03 Circuit Protection

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TVS - Diodes is the name given to solid state devices used to limit the energy from high powered static discharge events commonly found in electronic circuits. They are commonly referred to as transil diodes or ESD protection devices and AOZ8807DI-03 is a type of TVS diode. They are most commonly used in computers and telecommunications systems to protect components from ESD damage. This article will provide an overview of the applications and working principle of AOZ8807DI-03.

The AOZ8807DI-03 is designed to protect against Electrostatic Discharge (ESD), with an ESD capability of 8kV. It is a low capacitance Array TVS diode designed to protect ports on computers, consumer electronics, and telecom equipment from reverse voltage surges and ESD strikes. It is a voltage dependent device with an integrated array of six TVS diodes that provide an equivalent diode capacitance of 6.8pF. The integrated TVS array blocks and redirects overvoltage transients away from sensitive components.

The main application for AOZ8807DI-03 is in the protection of telecommunications equipment from ESD and overvoltage transients produced by lightning and other power surges. It is suitable for use in various telecom products such as Ethernet routers, access equipment, line cards, and PABX systems. In addition, it can be used to protect data ports (USB and RJ45) and other contactless systems such as wafer cards in computers and digital signatures.

The working principle of the AOZ8807DI-03 is based on the proven principle of avalanche breakdown. The TVS array is designed with a high doping concentration in the protection tube. When an overvoltage transient or ESD strike is applied to the protected equipment, the voltage across the tube increases until the avalanche voltage is achieved, at which point the TVS array conducts the current surge away from the protected equipment.

The AOZ8807DI-03 has a maximum clampled voltage rating of 16V, which provides protection against high voltage transients up to 8kV of ESD. It also has a low internal capacitance of 6.8pF, which avoids signal degradation when used to protect high-speed data busses. The device has an excellent surge handling capability and can handle up to 10A of surge current. It is housed in a small SOT486 package that can easily be integrated into a variety of applications. The device is also lead-free, RoHS and WEEE compliant.

In short, AOZ8807DI-03 is an ESD protection device designed to protect communications equipment from high voltage transients and ESD strikes. It works by redirecting transient energy away from sensitive components via a TVS array, which is designed to provide an avalanche voltage and absorb the energy from the transient. It has a low capacitance of 6.8pF and can handle up to 10A of surge current. It is available in a SOT486 package for easy integration into a variety of applications.

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