BT151-650R,127 is a thyristor type semiconductor device from NXP Semiconductors. It is a SCR (silicon-controlled rectifier), featuring low gate trigger current and voltage. This device is ideally suited for high-frequency switching applications, as well as resistive and inductive load regulation, phase control rectification, and other power switching applications. This device features a robust package design, which offers high thermal and electrical performance, and is ideal for higher power applications.