STMicroelectronics Surface Mount 3-Pin TO-252 TRIAC 600 V Gate Trigger 1.3 V T405-600B

STMicroelectronics T405-600B is a surface mount TRIAC device with a 3-pin TO-252 package designed for efficient AC power switching applications. It features a 600 V repetitive peak reverse voltage and can handle an average on-state current of 4 A, making it suitable for industrial and electronic control circuits including motor control, lighting dimmers, and heater controls.

This device offers a maximum gate trigger voltage of 1.3 V and a maximum gate trigger current of 5 mA, enabling low-power triggering from control circuits. It supports a surge current rating of 31 A for transient load spikes and is built to operate reliably across a temperature range from -40°C up to 125°C. The peak gate power dissipation is rated at 1 W, which ensures robustness for switching applications.

Its compact TO-252 package with dimensions of 6.6 mm in length and 2.4 mm in height allows easy surface mounting on printed circuit boards, making it highly practical for modern compact designs. The device maintains a very low repetitive peak off-state current of just 5 µA to minimize leakage power.

Typical industrial uses include semiconductor-based AC load switching in power supplies, home appliances, HVAC systems, motor speed controls, and automated manufacturing equipment. The device does not carry automotive or special standards approval but is engineered for reliable performance in a wide range of power control scenarios.

Supports rated average on-state current of 4 A for efficient load control. Features a 3-pin TO-252 package suitable for surface mount applications. Gate trigger voltage maximum 1.3 V ensures low control power requirement.

Maximum repetitive peak reverse voltage of 600 V for reliable AC switching. Capable of surge current rated at 31 A to handle transient loads. Operates within temperature range of -40°C to 125°C for diverse environmental conditions.

Peak gate power dissipation rated at 1 W enhances durability under switching loads. Minimal repetitive peak off-state current of 5 µA reduces leakage and power loss. Compact dimensions of 6.6 mm length and 2.4 mm height for space-efficient PCB design.

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