The P0640SA is a Gas Discharge Tube (GDT) manufactured by SEMIWARE using the SMB DO-214AA package type. It is a RoHS compliant electronic component composed of two electrodes encapsulated in a non-conductive medium such as air or gas. The P0640SA features a 630V discharge voltage rating and a maximum surge voltage rating of 400V. It is ideal for over-voltage protection applications where alternate protection methods are impractical or ineffective. It is available in various configurations, including single-pole and double-pole types. The P0640SA offers reliable protection against over-voltages, making it an ideal choice for industrial, automotive, and telecom applications.