The DP0640SB is a Discharge Tube (GDT/TSS) SMB RoHS manufactured by Dongchen. This part is mainly used in surge protection applications. It is a 2-pin radial-leaded device with a ceramic body and a silver-plated top electrode. It features a low leakage current, high voltage withstanding capabilities, and fast response time. This part provides good repetitive surge energy absorption and spike current suppression for telecom or IT equipment. The operating voltage of the DP0640SB is up to 8.3kV, with a max discharge current of 400mA and a power dissipation of 500W. Moreover, its dielectric strength is up to 7500VAC and its noise suppression ability can withstand up to 25kA. Finally, this electronic part is compliant with RoHS standards and comes with an SMB package.