The DP3100SB with Discharge Tubes (GDT/TSS) SMB RoHS manufactured by Dongchen is an advanced, high-speed spark gap protection device designed for high voltage transient protection in AC power systems. The device is a Rapid Discharge Device (RDD), which provides excellent protection against high voltage transients and pulsed current spikes. The device has a fast response time and low reactance due to a large number of Discharge Tubes (GDT/TSS) arranged in series and parallel circuits. The device is rated for up to 10kV transient peak energy level, and is RoHS compliant, meeting the standards of environmental responsibility and safe disposal. It has an SMB package and can be installed in AC power systems to provide reliable protection against lightning, surges, and other high voltage transient events.