The ZS4749A-AF-H is a high-performance unidirectional TVS diode manufactured by Formosa Microsemi. Designed to protect sensitive electronic circuits from voltage transients induced by electrostatic discharge (ESD), inductive load switching, and other transient voltage events, this diode offers a robust and reliable solution. With a power dissipation rating of 400W, it effectively clamps transient voltages to safe levels, preventing damage to downstream components. The ZS4749A-AF-H is housed in a DO-214AC (SMA) package, providing excellent thermal performance and ease of assembly. Supreme Components International is an authorised distributor of Formosa Microsemi components, ensuring that you receive only genuine and high-quality products. This TVS diode is suitable for a wide range of applications, including automotive, industrial, and consumer electronics.