The CMOZ30V TR from Central Semiconductor Corp is a surface mount zener diode with a zener voltage of 30V and a maximum power dissipation of 300mW. It has a forward voltage of 900mV at 10mA and a reverse leakage current of 50nA at 21V. This zener diode is designed to operate at a temperature range of 150°C, making it suitable for high temperature applications. It is packaged in a SOD-523 package and has a tolerance of ±5%. The maximum impedance of this zener diode is 80 Ohm.