T405-600H ST TRIACs

The T405-600H is a 4A standard Triac from STMicroelectronics in TO-251 (IPAK) through-hole package, featuring 600V repetitive peak off-state voltage and sensitive gate triggering for direct microcontroller interface . For selection, verify RMS on-state current of 4A, gate trigger current of 5mA typical for logic-level drive, gate trigger voltage of 1.3V, non-repetitive surge current capability, holding current characteristics, and operating junction temperature from -40°C to +125°C . Features include sensitive gate allowing direct drive from microcontrollers without high current buffers, planar technology for high reliability, and through-hole TO-251 package for robust PCB mounting. Ideal for AC load switching in home appliances (washing machines, microwave ovens, refrigerators), light dimmers, motor speed control for universal motors (power tools, kitchen appliances), solenoid and valve control, solid-state relays, and industrial equipment requiring 4A current handling with 600V voltage rating where gate currents of 5mA are available from microcontrollers . In stock at HL Electronics – request a quote for fast delivery.