STMICROELECTRONICS T4 Series Triac 4A 600V TO-252

The STMICROELECTRONICS T4 Series Triac is a robust semiconductor component designed for controlling AC power in a variety of applications. With an on-state RMS current rating of 4A and a peak repetitive off-state voltage of 600V, this triac provides reliable switching for general-purpose AC circuits. Its three-quadrant operation and a low gate trigger current sensitivity of just 5mA make it highly efficient and easy to drive with low-power control circuits.

This component is housed in a compact TO-252 (DPAK) surface-mount package, making it suitable for modern, space-constrained PCB designs. It features a low peak on-state voltage of 1.56V, which helps to minimise power dissipation and heat generation during operation. With a maximum gate trigger voltage of 1.3V and a holding current of 10mA, it offers stable and consistent performance in switching applications.

Key Features & Applications

• Versatile Control: Ideal for general-purpose AC switching, including inductive loads and motor control circuits commonly found in home appliances, power tools, and lighting systems.
• Robust Design: Capable of handling peak non-repetitive surge currents up to 30A, providing good immunity against transient overloads.
• Wide Temperature Range: Operates reliably at temperatures up to 125°C, ensuring performance in demanding environments.
• Surface-Mount Convenience: The TO-252 package is designed for easy automated assembly and offers a good balance of power handling and board space efficiency.

Engineers and designers will appreciate this triac for its combination of performance, compact size, and reliability, making it a solid choice for a wide range of AC power control projects.