The MMBZ18VCL series Zener diodes, packaged in a SOT-23 package, offer voltage regulation; even in reverse breakdown mode, the voltage across them remains essentially constant. Leveraging this property, they are commonly used in voltage regulator
Working peak reverse voltage 3V to 26VStandard Zener breakdown voltage 5.6V to 33VPeak power 24 or 40 Watts @ 1.0ms (unidirectional) per Figure 5 WaveformESD Rating of Class N (exceeding 16KV) per the Human Body ModelMaximum Clamping Voltage @ Peak Pulse CurrentSOT-23 Package