SX51-350X is a Discharge Tube (GDT/TSS) Axial manufactured by SURGING. It has a 5.5x6mm size and is RoHS compliant. This electronic part is a Gas Discharge Tube (GDT) designed to protect high-voltage circuits from electrical overshoot, voltage spikes, and other dangerous voltage levels. It is ideal for use in a variety of switched-mode power supplies, UPS, and other applications that require a reliable surge protection device. It features a fast discharge time, low capacitance, and can handle high-voltage and high-current applications. It is designed to protect the integrity of the system, ensuring its reliability and durability.