The BT136X-600 is a Thyristor Surge Suppressor (TSS) made by NXP Semiconductors. It is a robust, low-cost, single-channel TSS that can protect against high voltage surges in residential, automotive, industrial, and telecom applications. It has an on-state voltage of 600V and is designed with a low incore time and variable firing time to reduce noticeable ignition. Its low internal power dissipation ensures low leakage current and improved reliability. It also has a double breakover construction which minimizes thermal runaway effects and ensures efficient thermal management.