Ween Semiconductors TO-220AB Triac, 8A, 600V, 10mA

The Ween Semiconductors Planar Passivated Triac is a very sensitive gate, four-quadrant semiconductor device, engineered for general purpose bidirectional switching and phase control applications. Housed in a robust TO-220AB (SOT78) plastic package, this 'Series D' triac offers exceptional gate sensitivity, making it perfectly suited for direct interfacing with microcontrollers, logic integrated circuits, and other low-power gate trigger circuits without the need for additional amplification. Its planar passivated construction enhances voltage ruggedness and long-term operational reliability, even in demanding environments.

This triac is characterised by its high blocking voltage capability of 600V and an on-state RMS current rating of 8A, providing robust performance for a wide range of AC power control tasks. The very low gate trigger voltage (maximum 1V) and holding current (maximum 10mA) ensure efficient and reliable switching, particularly beneficial for low-current loads and applications where minimising electromagnetic interference (EMI) during commutation is critical. Its ability to trigger in all four quadrants offers superior flexibility in circuit design.

Ideal Applications

• General Purpose Motor Control: Perfect for speed regulation and directional control of AC motors in appliances, power tools, and industrial equipment.
• AC Switching: Reliable for switching heaters, lamps, and other resistive or inductive loads.
• Phase Control Circuits: Excellent for light dimmers, fan speed controllers, and universal motor controls where precise power modulation is required.
• Direct Logic Interface: Can be driven directly from low-power drivers, logic ICs, and microcontroller GPIO pins, simplifying circuit design and reducing component count.

With a peak non-repetitive surge current rating of 71A and a maximum operating junction temperature of 125°C, this component is built