The BT137S-800G, 118 is a fast-switching TRIAC from NXP. It is a surge-tolerant power switch optimized for low power dissipation and long term reliability and is rated at 800V/10A. The BT137S-800G, 118 is specifically designed for advanced switching applications and is an ideal choice for AC or DC applications that require precise control. It is an efficient and cost-effective solution for a wide range of industrial, consumer, and telecom applications.