The BZT52B18S with Zener Diodes SOD-323 RoHS is a type of semiconductor device manufactured by Yangjie. It is a surface-mount, dual-input, symmetrically clamped, Zener diode with higher breakdown voltage. This component has a rated current of 18V, a maximum low-current leakage voltage of 0.4 µA at Vz, and a thermally enhanced construction for greater heat dissipation. The SOD-323 package provides increased switching performance and better planarity, increased power density, and higher reliability. The BZT52B18S is RoHS compliant, making it environmentally safe and suitable for a variety of applications.