Automotive TVS/ESD Diodes Vishay Semiconductors Automotive TVS/ESD Diodes are AEC-Q101-qualified devices that provide a high surge capability of 400W at 10/1000μs for portable electronics. These modules feature a low 1mm profile, low noise technology, and fast response times. Vishay Semiconductors Automotive TVS/ESD Diodes are ideal for line transient voltage protection in space-constrained electronics, such as laptops, notebooks, tablets, smartphones, and external hard drives.