This Transient Voltage Suppressor is packaged in DO-214AA package, which has a power rating of 500W. "Available as High Reliability device per MIL-PRF-19500 indicate –HR suffix after the part number. Contact for -HR flow. Add suffix ""PBF"" for Pb-free lead finish."
Transient Voltage Suppressors provide protection for electronic circuitry from voltage and surge tranisients.