VESD05-02V-GS08 Circuit Protection

Transient voltage suppression (TVS) diodes, also known as suppression or clamping diodes, are specialized diodes used for protection against surges or spikes in electronic circuits. VESD05-02V-GS08 is a type of TVS diode designed to protect electronic equipment from voltage transients caused by electrostatic discharge (ESD) when handling, cable skipping, switching, or lightning strikes. It is a bidirectional device, which can handle up to 5A of maximum peak pulse current.

The VESD05-02V-GS08 protection circuit is comprised of a small, two-terminal, surface-mount diode package, with an operating voltage up to 20V, a holding voltage of 8V, and a reverse leakage current of 2uA. It also has a low clamping ratio of 0.25V/A, allowing it to dissipate absorbed energy efficiently and quickly. The device is constructed from a zener diode and a back-to-back silicon protection diode for both positive and negative polarity protection.

The VESD05-02V-GS08 has two primary modes of operation, breakdown mode and backflow mode. In breakdown mode, the zener diode breaks down and provides a low impedance path, preventing the transient voltage from reaching the sensitive components of the system. In backflow mode, the reverse current bypasses the zener diode and is dissipated as heat across the protective diode, limiting the voltage reaching the sensitive components. This feature makes the device especially useful if the transient voltage exceeds the breakdown voltage of the zener diode.

The VESD05-02V-GS08 is designed to offer superior protection in low- to medium-impedance lines. Its low reverse leakage current ensures minimal current is diverted even in harsh conditions. Its low clamping ratio also means it dissipates its absorbed energy efficiently, reducing the amount of downtime for system reset and enabling longer system lifetimes. The device also meets the requirements of international standards such as IEC 61000-4-2 and UL 1414, and is compatible with RoHS, Pb-Free, and REACH standards.

In summary, the VESD05-02V-GS08 is a useful and cost-effective transient voltage suppression diode designed to protect against ESD and other transient voltages while meeting international standards and offering high-quality protection in low- to medium-impedance lines. Its low clamping ratio and low reverse leakage current make it the ideal choice for devices sensitive to voltage surges and spikes.