The MMSZ2V4T1/D 500 mW SOD−123 Surface Mount Zener Voltage Regulators offer 500 mW rating on FR−4 or FR−5 board, wide Zener reverse voltage range of −2.4 V to 56 V, package designed for optimal automated board assembly, small package size for high density applications, ESD rating of Class 3 (>16 kV) per Human Body Model, and Pb−free packages. It is ideal for automotive, industrial, and power applications.