The SMA4F33AH ESD Suppressors/TVS Diodes 400W, 38.9V, 5%, Unidirectional, TVS is a unidirectional device from Taiwan Semiconductor that is designed to provide robust, transient voltage suppression for industrial and commercial applications. This component features an immediate protection response for electrostatic discharge, as well as a fast operating response time. This suppression device is 5% overrated voltage and up to 400W for peak pulse power, and 38.9V clamping voltage. This ESD Suppressors/TVS Diodes is made up of a multilayer varistor that is utilized in combination with other components, such as spot diodes, to provide lightning, surge, and ESD/EFT protection. This protection device enhances system reliability and integrity by protecting sensitive electronic components from ESD damage and degradation from high voltage transients.