This Zener Diode is packaged in DO-35, which has a power dissipation of 0.5W. Available as High Reliability device per MIL-PRF-19500 indicate –HR suffix after the part number. Contact for -HR flow. Add "PBF" suffix for Pb-free lead finish.
Zener diodes provide voltage regulation over a broad range of operating voltages, currents and temperatures.