ACST1210-7T

Overview

The ACST1210-7T is a single-phase, four-quadrant AC switch manufactured by STMicroelectronics. It integrates a TRIAC with an integrated gate drive circuit in a single package, enabling direct control from microcontrollers or logic gates without external components. The device features a rated on-state current of 12 A and supports a repetitive peak off-state voltage of 700 V. Designed for surface-mount applications, it utilizes the TO-263 (D2PAK) package to facilitate efficient thermal management and compact PCB layouts in high-density power electronics designs.

Feature Summary

• Integrated gate drive circuit allows direct interfacing with standard logic levels
• Four-quadrant operation provides flexible triggering capabilities
• High thermal performance suitable for demanding power switching environments

Applications

• Solid-state relays
• Industrial motor control systems
• Lighting dimmers and AC power controllers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical ratings and packaging options. Ensure compliance with relevant safety certifications required for the target application environment before finalizing procurement specifications.

Selection Notes

Select this component when a robust, surface-mount AC switch with integrated logic-level gating is required. Evaluate the thermal dissipation requirements of the TO-263 package against the expected load current to ensure reliable operation under continuous duty cycles.

Part Context

This part belongs to the ACST series of intelligent AC switches from STMicroelectronics. These devices are engineered to simplify AC power control designs by combining triac functionality with integrated gate drivers, reducing the bill of materials and design complexity compared to discrete solutions.

Replacement Considerations

Consult official cross-reference lists for verified equivalents. Ensure any substitute maintains compatible voltage ratings, current handling capabilities, and package dimensions to fit existing board layouts without redesign.