BZW04-5V8 Circuit Protection

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TVS (Transient Voltage Suppression) Diodes are a form of voltage-limiting components that are designed to protect sensitive electronic systems from damage caused by surges in the supply voltage. The BZW04-5V8 TVS diode is a unidirectional device that is specifically designed for ESD (Electrostatic Discharge) protection.

The BZW04-5V8 has a peak pulse power rating of 1500 Watts and a clamping voltage of 8V at Ipp (Peak Pulse Current). It has a low capacitance of 4.5pF and a fast response time. It is encased in a small SMA (Surface Mount Array) package and is designed to be used in high-speed applications such as USB 3.0/3.1 and Ethernet. It is also suitable for use in sensitive low-voltage systems such as those found in automotive applications.

The working principle behind the BZW04-5V8 is based on the phenomenon known as avalanche breakdown. This is when a high electric field strength created by raised voltage causes the crystalline structure of a semiconductor diode (commonly silicon) to break down. This results in a rapid increase in current flow though the diode. In the case of the BZW04-5V8, this surge is limited to the 8V clamping voltage, thus providing the necessary protection to the system.

The BZW04-5V8 is an effective solution for protecting circuits from over-voltage and ESD. It is a low capacitance device that provides excellent protection with fast response times. The device is suitable for use in a variety of applications including USB 3.0/3.1, Ethernet and automotive systems. It is an ideal choice for systems that require high-level ESD protection and robust over-voltage protection.

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