4532-121-LF is a Surface Mount Discharge Tube (GDT/TSS) RoHS compliant, offered by Yageo, measuring 4.5x3.2mm. The product is a Gas Discharge Tube (GDT) or Transient Suppression Spikes (TSS), which is widely used to protect against electrostatic discharges. It is specially designed with dual-layer electrode construction, and comes with integrated varistor element with radial leads. It offers fast response times for protection from high voltage spikes, and features a low leakage current. It is suitable for use in high-speed, high-density applications such as in power supplies, computers, and automotive and telecom devices.